Bump version to 4.7.1

Merging current 'test release' from kennycud repo after extensive testing by community.

README.md

@@ -1,4 +1,19 @@
-# Qortal Project - Official Repo
+# Qortal Project - Qortal Core - Primary Repository
+The Qortal Core is the blockchain and node component of the overall project. It contains the primary API, and ability to make calls to create transactions, and interact with the Qortal Blockchain Network. 
+
+In order to run the Qortal Core, a machine with java 11+ installed is required. Minimum RAM specs will vary depending on settings, but as low as 4GB of RAM should be acceptable in most scenarios. 
+
+Qortal is a complete infrastructure platform with a blockchain backend, it is capable of indefinite web and application hosting with no continual fees, replacement of DNS and centralized name systems and communications systems, and is the foundation of the next generation digital infrastructure of the world. Qortal is unique in nearly every way, and was written from scratch to address as many concerns from both the existing 'blockchain space' and the 'typical internet' as possible, while maintaining a system that is easy to use and able to run on 'any' computer. 
+
+Qortal contains extensive functionality geared toward complete decentralization of the digital world. Removal of 'middlemen' of any kind from all transactions, and ability to publish websites and applications that require no continual fees, on a name that is truly owned by the account that registered it, or purchased it from another. A single name on Qortal is capable of being both a namespace and a 'username'. That single name can have an application, website, public and private data, communications, authentication, the namespace itself and more, which can subsequently be sold to anyone else without the need to change any type of 'hosting' or DNS entries that do not exist, email that doesn't exist, etc. Maintaining the same functionality as those replaced features of web 2.0. 
+
+Over time Qortal has progressed into a fully featured environment catering to any and all types of people and organizations, and will continue to advance as time goes on. Brining more features, capability, device support, and availale replacements for web2.0. Ultimately building a new, completely user-controlled digital world without limits. 
+
+Qortal has no owner, no company on top of it, and is completely community built, run, and funded. A community-established and run group of developers known as the 'dev-group' or Qortal Development Group, make group_approval based decisions for the project's future. If you are a developer interested in assisting with the project, you meay reach out to the Qortal Development Group in any of the available Qortal community locations. Either on the Qortal network itself, or on one of the temporary centralized social media locations. 
+
+Building the future one block at a time. Welcome to Qortal. 
+
+# Building the Qortal Core from Source
 
 ## Build / run
 
@@ -10,3 +25,21 @@
 - Run JAR in same working directory as *settings.json*: `java -jar target/qortal-1.0.jar`
 - Wrap in shell script, add JVM flags, redirection, backgrounding, etc. as necessary.
 - Or use supplied example shell script: *start.sh*
+
+# Using a pre-built Qortal 'jar' binary
+
+If you would prefer to utilize a released version of Qortal, you may do so by downloading one of the available releases from the releases page, that are also linked on https://qortal.org and https://qortal.dev. 
+
+# Learning Q-App Development
+
+https://qortal.dev contains dev documentation for building JS/React (and other client-side languages) applications or 'Q-Apps' on Qortal. Q-Apps are published on Registered Qortal Names, and aside from a single Name Registration fee, and a fraction of QORT for a publish transaction, require zero continual costs. These applications get more redundant with each new access from a new Qortal Node, making your application faster for the next user to download, and stronger as time goes on. Q-Apps live indefinitely in the history of the blockchain-secured Qortal Data Network (QDN).
+
+# How to learn more
+
+If the project interests you, you may learn more from the various web2 and QDN based websites focused on introductory information. 
+
+https://qortal.org - primary internet presence 
+https://qortal.dev - secondary and development focused website with links to many new developments and documentation
+https://wiki.qortal.org - community built and managed wiki with detailed information regarding the project
+
+links to telegram and discord communities are at the top of https://qortal.org as well. 

WindowsInstaller/Install Files/AppData/settings.json

@@ -1,3 +1,4 @@
 {
-  "apiDocumentationEnabled": true
+  "apiDocumentationEnabled": true,
+  "apiWhitelistEnabled": false
 }

WindowsInstaller/README.md

@@ -2,7 +2,9 @@
 
 ## Prerequisites
 
-* AdvancedInstaller v19.4 or better, and enterprise licence if translations are required
+* AdvancedInstaller v19.4 or better, and enterprise licence. 
+* Qortal has an open source license, however it currently (as of December 2024) only supports up to version 19. (We may need to reach out to Advanced Installer again to obtain a new license at some point, if needed. 
+* Reach out to @crowetic for links to the installer install files, and license. 
 * Installed AdoptOpenJDK v17 64bit, full JDK *not* JRE
 
 ## General build instructions
@@ -10,6 +12,12 @@
 If this is your first time opening the `qortal.aip` file then you might need to adjust
 configured paths, or create a dummy `D:` drive with the expected layout.
 
+Opening the aip file from within a clone of the qortal repo also works, if you have a separate windows machine setup to do the build. 
+
+You May need to change the location of the 'jre64' files inside Advanced Installer, if it is set to a path that your build machine doesn't have. 
+
+The Java Memory Arguments can be set manually, but as of December 2024 they have been reset back to system defaults. This should include G1GC Garbage Collector.
+
 Typical build procedure:
 
 * Place the `qortal.jar` file in `Install-Files\`

pom.xml

@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.qortal</groupId>
 	<artifactId>qortal</artifactId>
-	<version>4.5.2</version>
+	<version>4.7.1</version>
 	<packaging>jar</packaging>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -16,26 +16,26 @@
 		<ciyam-at.version>1.4.2</ciyam-at.version>
 		<commons-net.version>3.8.0</commons-net.version>
 		<commons-text.version>1.12.0</commons-text.version>
-		<commons-io.version>2.16.1</commons-io.version>
-		<commons-compress.version>1.26.2</commons-compress.version>
-		<commons-lang3.version>3.14.0</commons-lang3.version>
+		<commons-io.version>2.18.0</commons-io.version>
+		<commons-compress.version>1.27.1</commons-compress.version>
+		<commons-lang3.version>3.17.0</commons-lang3.version>
 		<dagger.version>1.2.2</dagger.version>
 		<extendedset.version>0.12.3</extendedset.version>
 		<git-commit-id-plugin.version>4.9.10</git-commit-id-plugin.version>
-		<grpc.version>1.65.0</grpc.version>
-		<guava.version>33.2.1-jre</guava.version>
+		<grpc.version>1.68.1</grpc.version>
+		<guava.version>33.3.1-jre</guava.version>
 		<hamcrest-library.version>2.2</hamcrest-library.version>
 		<homoglyph.version>1.2.1</homoglyph.version>
-		<hsqldb.version>2.5.1</hsqldb.version>
-		<icu4j.version>75.1</icu4j.version>
-		<java-diff-utils.version>4.12</java-diff-utils.version>
+		<hsqldb.version>2.7.4</hsqldb.version>
+		<icu4j.version>76.1</icu4j.version>
+		<java-diff-utils.version>4.15</java-diff-utils.version>
 		<javax.servlet-api.version>4.0.1</javax.servlet-api.version>
 		<jaxb-runtime.version>2.3.9</jaxb-runtime.version>
 		<jersey.version>2.42</jersey.version>
-		<jetty.version>9.4.54.v20240208</jetty.version>
+		<jetty.version>9.4.56.v20240826</jetty.version>
 		<json-simple.version>1.1.1</json-simple.version>
 		<json.version>20240303</json.version>
-		<jsoup.version>1.17.2</jsoup.version>
+		<jsoup.version>1.18.1</jsoup.version>
 		<junit-jupiter-engine.version>5.11.0-M2</junit-jupiter-engine.version>
 		<lifecycle-mapping.version>1.0.0</lifecycle-mapping.version>
 		<log4j.version>2.23.1</log4j.version>
@@ -45,19 +45,19 @@
 		<maven-dependency-plugin.version>3.6.1</maven-dependency-plugin.version>
 		<maven-jar-plugin.version>3.4.2</maven-jar-plugin.version>
 		<maven-package-info-plugin.version>1.1.0</maven-package-info-plugin.version>
-		<maven-plugin.version>2.16.2</maven-plugin.version>
-		<maven-reproducible-build-plugin.version>0.16</maven-reproducible-build-plugin.version>
+		<maven-plugin.version>2.18.0</maven-plugin.version>
+		<maven-reproducible-build-plugin.version>0.17</maven-reproducible-build-plugin.version>
 		<maven-resources-plugin.version>3.3.1</maven-resources-plugin.version>
 		<maven-shade-plugin.version>3.6.0</maven-shade-plugin.version>
-		<maven-surefire-plugin.version>3.3.0</maven-surefire-plugin.version>
+		<maven-surefire-plugin.version>3.5.2</maven-surefire-plugin.version>
 		<protobuf.version>3.25.3</protobuf.version>
 		<replacer.version>1.5.3</replacer.version>
 		<simplemagic.version>1.17</simplemagic.version>
 		<slf4j.version>1.7.36</slf4j.version>
 		<swagger-api.version>2.0.10</swagger-api.version>
-		<swagger-ui.version>5.17.14</swagger-ui.version>
+		<swagger-ui.version>5.18.2</swagger-ui.version>
 		<upnp.version>1.2</upnp.version>
-		<xz.version>1.9</xz.version>
+		<xz.version>1.10</xz.version>
 	</properties>
 	<build>
 		<sourceDirectory>src/main/java</sourceDirectory>

src/main/java/org/hsqldb/jdbc/HSQLDBPoolMonitored.java

@@ -0,0 +1,173 @@
+package org.hsqldb.jdbc;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.hsqldb.jdbc.pool.JDBCPooledConnection;
+import org.qortal.data.system.DbConnectionInfo;
+import org.qortal.repository.hsqldb.HSQLDBRepositoryFactory;
+
+import javax.sql.ConnectionEvent;
+import javax.sql.PooledConnection;
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.util.Comparator;
+import java.util.List;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.stream.Collectors;
+
+/**
+ * Class HSQLDBPoolMonitored
+ *
+ * This class uses the same logic as HSQLDBPool. The only difference is it monitors the state of every connection
+ * to the database. This is used for debugging purposes only.
+ */
+public class HSQLDBPoolMonitored extends HSQLDBPool {
+
+	private static final Logger LOGGER = LogManager.getLogger(HSQLDBRepositoryFactory.class);
+
+	private static final String EMPTY = "Empty";
+	private static final String AVAILABLE = "Available";
+	private static final String ALLOCATED = "Allocated";
+
+	private ConcurrentHashMap<Integer, DbConnectionInfo> infoByIndex;
+
+	public HSQLDBPoolMonitored(int poolSize) {
+		super(poolSize);
+
+		this.infoByIndex = new ConcurrentHashMap<>(poolSize);
+	}
+
+	/**
+	 * Tries to retrieve a new connection using the properties that have already been
+	 * set.
+	 *
+	 * @return  a connection to the data source, or null if no spare connections in pool
+	 * @exception SQLException if a database access error occurs
+	 */
+	public Connection tryConnection() throws SQLException {
+		for (int i = 0; i < states.length(); i++) {
+			if (states.compareAndSet(i, RefState.available, RefState.allocated)) {
+				JDBCPooledConnection pooledConnection = connections[i];
+
+				if (pooledConnection == null)
+					// Probably shutdown situation
+					return null;
+
+				infoByIndex.put(i, new DbConnectionInfo(System.currentTimeMillis(), Thread.currentThread().getName(), ALLOCATED));
+
+				return pooledConnection.getConnection();
+			}
+
+			if (states.compareAndSet(i, RefState.empty, RefState.allocated)) {
+				try {
+					JDBCPooledConnection pooledConnection = (JDBCPooledConnection) source.getPooledConnection();
+
+					if (pooledConnection == null)
+						// Probably shutdown situation
+						return null;
+
+					pooledConnection.addConnectionEventListener(this);
+					pooledConnection.addStatementEventListener(this);
+					connections[i] = pooledConnection;
+
+					infoByIndex.put(i, new DbConnectionInfo(System.currentTimeMillis(), Thread.currentThread().getName(), ALLOCATED));
+
+					return pooledConnection.getConnection();
+				} catch (SQLException e) {
+					states.set(i, RefState.empty);
+					infoByIndex.put(i, new DbConnectionInfo(System.currentTimeMillis(), Thread.currentThread().getName(), EMPTY));
+				}
+			}
+		}
+
+		return null;
+	}
+
+	public Connection getConnection() throws SQLException {
+		int var1 = 300;
+		if (this.source.loginTimeout != 0) {
+			var1 = this.source.loginTimeout * 10;
+		}
+
+		if (this.closed) {
+			throw new SQLException("connection pool is closed");
+		} else {
+			for(int var2 = 0; var2 < var1; ++var2) {
+				for(int var3 = 0; var3 < this.states.length(); ++var3) {
+					if (this.states.compareAndSet(var3, 1, 2)) {
+						infoByIndex.put(var3, new DbConnectionInfo(System.currentTimeMillis(), Thread.currentThread().getName(), ALLOCATED));
+						return this.connections[var3].getConnection();
+					}
+
+					if (this.states.compareAndSet(var3, 0, 2)) {
+						try {
+							JDBCPooledConnection var4 = (JDBCPooledConnection)this.source.getPooledConnection();
+							var4.addConnectionEventListener(this);
+							var4.addStatementEventListener(this);
+							this.connections[var3] = var4;
+
+							infoByIndex.put(var3, new DbConnectionInfo(System.currentTimeMillis(), Thread.currentThread().getName(), ALLOCATED));
+
+							return this.connections[var3].getConnection();
+						} catch (SQLException var6) {
+							this.states.set(var3, 0);
+							infoByIndex.put(var3, new DbConnectionInfo(System.currentTimeMillis(), Thread.currentThread().getName(), EMPTY));
+						}
+					}
+				}
+
+				try {
+					Thread.sleep(100L);
+				} catch (InterruptedException var5) {
+				}
+			}
+
+			throw JDBCUtil.invalidArgument();
+		}
+	}
+
+	public void connectionClosed(ConnectionEvent event) {
+		PooledConnection connection = (PooledConnection) event.getSource();
+
+		for (int i = 0; i < connections.length; i++) {
+			if (connections[i] == connection) {
+				states.set(i, RefState.available);
+				infoByIndex.put(i, new DbConnectionInfo(System.currentTimeMillis(), Thread.currentThread().getName(), AVAILABLE));
+				break;
+			}
+		}
+	}
+
+	public void connectionErrorOccurred(ConnectionEvent event) {
+		PooledConnection connection = (PooledConnection) event.getSource();
+
+		for (int i = 0; i < connections.length; i++) {
+			if (connections[i] == connection) {
+				states.set(i, RefState.allocated);
+				connections[i] = null;
+				states.set(i, RefState.empty);
+				infoByIndex.put(i, new DbConnectionInfo(System.currentTimeMillis(), Thread.currentThread().getName(), EMPTY));
+				break;
+			}
+		}
+	}
+
+	public List<DbConnectionInfo> getDbConnectionsStates() {
+
+		return infoByIndex.values().stream()
+			.sorted(Comparator.comparingLong(DbConnectionInfo::getUpdated))
+			.collect(Collectors.toList());
+	}
+
+	private int findConnectionIndex(ConnectionEvent connectionEvent) {
+		PooledConnection pooledConnection = (PooledConnection) connectionEvent.getSource();
+
+		for(int i = 0; i < this.connections.length; ++i) {
+			if (this.connections[i] == pooledConnection) {
+				return i;
+			}
+		}
+
+		return -1;
+	}
+}

src/main/java/org/qortal/ApplyRestart.java

@@ -1,14 +1,17 @@
 package org.qortal;
 
+import org.apache.commons.io.FileUtils;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.bouncycastle.jce.provider.BouncyCastleProvider;
 import org.bouncycastle.jsse.provider.BouncyCastleJsseProvider;
 import org.qortal.api.ApiKey;
 import org.qortal.api.ApiRequest;
+import org.qortal.controller.Controller;
 import org.qortal.controller.RestartNode;
 import org.qortal.settings.Settings;
 
+import java.io.File;
 import java.io.IOException;
 import java.lang.management.ManagementFactory;
 import java.nio.file.Files;
@@ -16,6 +19,8 @@ import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.security.Security;
 import java.util.*;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.locks.ReentrantLock;
 import java.util.stream.Collectors;
 
 import static org.qortal.controller.RestartNode.AGENTLIB_JVM_HOLDER_ARG;
@@ -38,7 +43,7 @@ public class ApplyRestart {
 	private static final String JAVA_TOOL_OPTIONS_NAME = "JAVA_TOOL_OPTIONS";
 	private static final String JAVA_TOOL_OPTIONS_VALUE = "";
 
-	private static final long CHECK_INTERVAL = 10 * 1000L; // ms
+	private static final long CHECK_INTERVAL = 30 * 1000L; // ms
 	private static final int MAX_ATTEMPTS = 12;
 
 	public static void main(String[] args) {
@@ -51,21 +56,38 @@ public class ApplyRestart {
 		else
 			Settings.getInstance();
 
-		LOGGER.info("Applying restart...");
+		LOGGER.info("Applying restart this can take up to 5 minutes...");
 
 		// Shutdown node using API
 		if (!shutdownNode())
 			return;
 
-		// Restart node
-		restartNode(args);
+		try {
+			// Give some time for shutdown
+			TimeUnit.SECONDS.sleep(60);
 
-		LOGGER.info("Restarting...");
+			// Remove blockchain lock if exist
+			ReentrantLock blockchainLock = Controller.getInstance().getBlockchainLock();
+			if (blockchainLock.isLocked())
+				blockchainLock.unlock();
+
+			// Remove blockchain lock file if still exist
+			TimeUnit.SECONDS.sleep(60);
+			deleteLock();
+
+			// Restart node
+			TimeUnit.SECONDS.sleep(15);
+			restartNode(args);
+
+			LOGGER.info("Restarting...");
+		} catch (InterruptedException e) {
+			LOGGER.error("Unable to restart", e);
+		}
 	}
 
 	private static boolean shutdownNode() {
 		String baseUri = "http://localhost:" + Settings.getInstance().getApiPort() + "/";
-		LOGGER.info(() -> String.format("Shutting down node using API via %s", baseUri));
+		LOGGER.debug(() -> String.format("Shutting down node using API via %s", baseUri));
 
 		// The /admin/stop endpoint requires an API key, which may or may not be already generated
 		boolean apiKeyNewlyGenerated = false;
@@ -95,10 +117,17 @@ public class ApplyRestart {
 			String response = ApiRequest.perform(baseUri + "admin/stop", params);
 			if (response == null) {
 				// No response - consider node shut down
+				try {
+					TimeUnit.SECONDS.sleep(30);
+				} catch (InterruptedException e) {
+					throw new RuntimeException(e);
+				}
+
 				if (apiKeyNewlyGenerated) {
 					// API key was newly generated for restarting node, so we need to remove it
 					ApplyRestart.removeGeneratedApiKey();
 				}
+
 				return true;
 			}
 
@@ -134,7 +163,22 @@ public class ApplyRestart {
 			apiKey.delete();
 
 		} catch (IOException e) {
-			LOGGER.info("Error loading or deleting API key: {}", e.getMessage());
+			LOGGER.error("Error loading or deleting API key: {}", e.getMessage());
+		}
+	}
+
+	private static void deleteLock() {
+		// Get the repository path from settings
+		String repositoryPath = Settings.getInstance().getRepositoryPath();
+		LOGGER.debug(String.format("Repository path is: %s", repositoryPath));
+
+		try {
+			Path root = Paths.get(repositoryPath);
+			File lockFile = new File(root.resolve("blockchain.lck").toUri());
+			LOGGER.debug("Lockfile is: {}", lockFile);
+			FileUtils.forceDelete(FileUtils.getFile(lockFile));
+		} catch (IOException e) {
+			LOGGER.debug("Error deleting blockchain lock file: {}", e.getMessage());
 		}
 	}
 
@@ -150,9 +194,10 @@ public class ApplyRestart {
 
 		List<String> javaCmd;
 		if (Files.exists(exeLauncher)) {
-			javaCmd = Arrays.asList(exeLauncher.toString());
+			javaCmd = List.of(exeLauncher.toString());
 		} else {
 			javaCmd = new ArrayList<>();
+
 			// Java runtime binary itself
 			javaCmd.add(javaBinary.toString());
 

src/main/java/org/qortal/account/Account.java

@@ -7,14 +7,20 @@ import org.qortal.controller.LiteNode;
 import org.qortal.data.account.AccountBalanceData;
 import org.qortal.data.account.AccountData;
 import org.qortal.data.account.RewardShareData;
+import org.qortal.data.naming.NameData;
 import org.qortal.repository.DataException;
+import org.qortal.repository.GroupRepository;
+import org.qortal.repository.NameRepository;
 import org.qortal.repository.Repository;
 import org.qortal.settings.Settings;
 import org.qortal.utils.Base58;
+import org.qortal.utils.Groups;
 
 import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 
+import java.util.List;
+
 import static org.qortal.utils.Amounts.prettyAmount;
 
 @XmlAccessorType(XmlAccessType.NONE) // Stops JAX-RS errors when unmarshalling blockchain config
@@ -193,27 +199,85 @@ public class Account {
 
 	/** Returns whether account can be considered a "minting account".
 	 * <p>
-	 * To be considered a "minting account", the account needs to pass at least one of these tests:<br>
+	 * To be considered a "minting account", the account needs to pass some of these tests:<br>
 	 * <ul>
 	 * <li>account's level is at least <tt>minAccountLevelToMint</tt> from blockchain config</li>
-	 * <li>account has 'founder' flag set</li>
+	 * <li>account's address has registered a name</li>
+	 * <li>account's address is a member of the minter group</li>
 	 * </ul>
-	 * 
+	 *
+	 * @param isGroupValidated true if this account has already been validated for MINTER Group membership
 	 * @return true if account can be considered "minting account"
 	 * @throws DataException
 	 */
-	public boolean canMint() throws DataException {
+	public boolean canMint(boolean isGroupValidated) throws DataException {
 		AccountData accountData = this.repository.getAccountRepository().getAccount(this.address);
-		if (accountData == null)
-			return false;
+		NameRepository nameRepository = this.repository.getNameRepository();
+		GroupRepository groupRepository = this.repository.getGroupRepository();
+		String myAddress = accountData.getAddress();
 
-		Integer level = accountData.getLevel();
-		if (level != null && level >= BlockChain.getInstance().getMinAccountLevelToMint())
-			return true;
+		int blockchainHeight = this.repository.getBlockRepository().getBlockchainHeight();
 
-		// Founders can always mint, unless they have a penalty
-		if (Account.isFounder(accountData.getFlags()) && accountData.getBlocksMintedPenalty() == 0)
-			return true;
+		int levelToMint;
+
+		if( blockchainHeight >= BlockChain.getInstance().getIgnoreLevelForRewardShareHeight() ) {
+			levelToMint = 0;
+		}
+		else {
+			levelToMint = BlockChain.getInstance().getMinAccountLevelToMint();
+		}
+
+		int level = accountData.getLevel();
+		List<Integer> groupIdsToMint = Groups.getGroupIdsToMint( BlockChain.getInstance(), blockchainHeight );
+		int nameCheckHeight = BlockChain.getInstance().getOnlyMintWithNameHeight();
+		int groupCheckHeight = BlockChain.getInstance().getGroupMemberCheckHeight();
+		int removeNameCheckHeight = BlockChain.getInstance().getRemoveOnlyMintWithNameHeight();
+
+		// Can only mint if:
+		// Account's level is at least minAccountLevelToMint from blockchain config
+		if (blockchainHeight < nameCheckHeight) {
+			if (Account.isFounder(accountData.getFlags())) {
+				return accountData.getBlocksMintedPenalty() == 0;
+			} else {
+				return level >= levelToMint;
+			}
+		}
+
+		// Can only mint on onlyMintWithNameHeight from blockchain config if:
+		// Account's level is at least minAccountLevelToMint from blockchain config
+		// Account's address has registered a name
+		if (blockchainHeight >= nameCheckHeight && blockchainHeight < groupCheckHeight) {
+			List<NameData> myName = nameRepository.getNamesByOwner(myAddress);
+			if (Account.isFounder(accountData.getFlags())) {
+				return accountData.getBlocksMintedPenalty() == 0 && !myName.isEmpty();
+			} else {
+				return level >= levelToMint && !myName.isEmpty();
+			}
+		}
+
+		// Can only mint on groupMemberCheckHeight from blockchain config if:
+		// Account's level is at least minAccountLevelToMint from blockchain config
+		// Account's address has registered a name
+		// Account's address is a member of the minter group
+		if (blockchainHeight >= groupCheckHeight && blockchainHeight < removeNameCheckHeight) {
+			List<NameData> myName = nameRepository.getNamesByOwner(myAddress);
+			if (Account.isFounder(accountData.getFlags())) {
+				return accountData.getBlocksMintedPenalty() == 0 && !myName.isEmpty() && (isGroupValidated || Groups.memberExistsInAnyGroup(groupRepository, groupIdsToMint, myAddress));
+			} else {
+				return level >= levelToMint && !myName.isEmpty() && (isGroupValidated || Groups.memberExistsInAnyGroup(groupRepository, groupIdsToMint, myAddress));
+			}
+		}
+
+		// Can only mint on removeOnlyMintWithNameHeight from blockchain config if:
+		// Account's level is at least minAccountLevelToMint from blockchain config
+		// Account's address is a member of the minter group
+		if (blockchainHeight >= removeNameCheckHeight) {
+			if (Account.isFounder(accountData.getFlags())) {
+				return accountData.getBlocksMintedPenalty() == 0 && (isGroupValidated || Groups.memberExistsInAnyGroup(groupRepository, groupIdsToMint, myAddress));
+			} else {
+				return level >= levelToMint && (isGroupValidated || Groups.memberExistsInAnyGroup(groupRepository, groupIdsToMint, myAddress));
+			}
+		}
 
 		return false;
 	}
@@ -228,7 +292,6 @@ public class Account {
 		return this.repository.getAccountRepository().getBlocksMintedPenaltyCount(this.address);
 	}
 
-
 	/** Returns whether account can build reward-shares.
 	 * <p>
 	 * To be able to create reward-shares, the account needs to pass at least one of these tests:<br>
@@ -242,6 +305,7 @@ public class Account {
 	 */
 	public boolean canRewardShare() throws DataException {
 		AccountData accountData = this.repository.getAccountRepository().getAccount(this.address);
+
 		if (accountData == null)
 			return false;
 
@@ -252,6 +316,9 @@ public class Account {
 		if (Account.isFounder(accountData.getFlags()) && accountData.getBlocksMintedPenalty() == 0)
 			return true;
 
+		if( this.repository.getBlockRepository().getBlockchainHeight() >= BlockChain.getInstance().getIgnoreLevelForRewardShareHeight() )
+			return true;
+
 		return false;
 	}
 
@@ -295,10 +362,28 @@ public class Account {
 	}
 
 	/**
-	 * Returns 'effective' minting level, or zero if reward-share does not exist.
+	 * Returns reward-share minting address, or unknown if reward-share does not exist.
 	 * 
 	 * @param repository
 	 * @param rewardSharePublicKey
+	 * @return address or unknown
+	 * @throws DataException
+	 */
+	public static String getRewardShareMintingAddress(Repository repository, byte[] rewardSharePublicKey) throws DataException {
+		// Find actual minter address
+		RewardShareData rewardShareData = repository.getAccountRepository().getRewardShare(rewardSharePublicKey);
+
+		if (rewardShareData == null)
+			return "Unknown";
+
+		return rewardShareData.getMinter();
+	}
+
+	/**
+	 * Returns 'effective' minting level, or zero if reward-share does not exist.
+	 *
+	 * @param repository
+	 * @param rewardSharePublicKey
 	 * @return 0+
 	 * @throws DataException
 	 */
@@ -311,6 +396,7 @@ public class Account {
 		Account rewardShareMinter = new Account(repository, rewardShareData.getMinter());
 		return rewardShareMinter.getEffectiveMintingLevel();
 	}
+
 	/**
 	 * Returns 'effective' minting level, with a fix for the zero level.
 	 * <p>

src/main/java/org/qortal/api/ApiService.java

@@ -194,6 +194,7 @@ public class ApiService {
 
 			context.addServlet(AdminStatusWebSocket.class, "/websockets/admin/status");
 			context.addServlet(BlocksWebSocket.class, "/websockets/blocks");
+			context.addServlet(DataMonitorSocket.class, "/websockets/datamonitor");
 			context.addServlet(ActiveChatsWebSocket.class, "/websockets/chat/active/*");
 			context.addServlet(ChatMessagesWebSocket.class, "/websockets/chat/messages");
 			context.addServlet(TradeOffersWebSocket.class, "/websockets/crosschain/tradeoffers");

src/main/java/org/qortal/api/model/ApiOnlineAccount.java

@@ -1,7 +1,13 @@
 package org.qortal.api.model;
 
+import org.qortal.account.Account;
+import org.qortal.repository.DataException;
+import org.qortal.repository.RepositoryManager;
+import org.qortal.repository.Repository;
+
 import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlElement;
 
 // All properties to be converted to JSON via JAXB
 @XmlAccessorType(XmlAccessType.FIELD)
@@ -47,4 +53,31 @@ public class ApiOnlineAccount {
 		return this.recipientAddress;
 	}
 
+	public int getMinterLevelFromPublicKey() {
+		try (final Repository repository = RepositoryManager.getRepository()) {
+			return Account.getRewardShareEffectiveMintingLevel(repository, this.rewardSharePublicKey);
+		} catch (DataException e) {
+			return 0;
+		}
+	}
+
+	public boolean getIsMember() {
+		try (final Repository repository = RepositoryManager.getRepository()) {
+			return repository.getGroupRepository().memberExists(694, getMinterAddress());
+		} catch (DataException e) {
+			return false;
+		}
+	}
+
+	// JAXB special
+	
+	@XmlElement(name = "minterLevel")
+	protected int getMinterLevel() {
+		return getMinterLevelFromPublicKey();
+	}
+
+	@XmlElement(name = "isMinterMember")
+	protected boolean getMinterMember() {
+		return getIsMember();
+	}
 }

src/main/java/org/qortal/api/model/BlockMintingInfo.java

@@ -9,6 +9,7 @@ import java.math.BigInteger;
 public class BlockMintingInfo {
 
 	public byte[] minterPublicKey;
+	public String minterAddress;
 	public int minterLevel;
 	public int onlineAccountsCount;
 	public BigDecimal maxDistance;
@@ -19,5 +20,4 @@ public class BlockMintingInfo {
 
 	public BlockMintingInfo() {
 	}
-
 }

src/main/java/org/qortal/api/model/CrossChainTradeLedgerEntry.java

@@ -0,0 +1,72 @@
+package org.qortal.api.model;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import org.qortal.data.crosschain.CrossChainTradeData;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
+
+// All properties to be converted to JSON via JAXB
+@XmlAccessorType(XmlAccessType.FIELD)
+public class CrossChainTradeLedgerEntry {
+
+	private String market;
+
+	private String currency;
+
+	@XmlJavaTypeAdapter(value = org.qortal.api.AmountTypeAdapter.class)
+	private long quantity;
+
+	@XmlJavaTypeAdapter(value = org.qortal.api.AmountTypeAdapter.class)
+	private long feeAmount;
+
+	private String feeCurrency;
+
+	@XmlJavaTypeAdapter(value = org.qortal.api.AmountTypeAdapter.class)
+	private long totalPrice;
+
+	private long tradeTimestamp;
+
+	protected CrossChainTradeLedgerEntry() {
+		/* For JAXB */
+	}
+
+	public CrossChainTradeLedgerEntry(String market, String currency, long quantity, long feeAmount, String feeCurrency, long totalPrice, long tradeTimestamp) {
+		this.market = market;
+		this.currency = currency;
+		this.quantity = quantity;
+		this.feeAmount = feeAmount;
+		this.feeCurrency = feeCurrency;
+		this.totalPrice = totalPrice;
+		this.tradeTimestamp = tradeTimestamp;
+	}
+
+	public String getMarket() {
+		return market;
+	}
+
+	public String getCurrency() {
+		return currency;
+	}
+
+	public long getQuantity() {
+		return quantity;
+	}
+
+	public long getFeeAmount() {
+		return feeAmount;
+	}
+
+	public String getFeeCurrency() {
+		return feeCurrency;
+	}
+
+	public long getTotalPrice() {
+		return totalPrice;
+	}
+
+	public long getTradeTimestamp() {
+		return tradeTimestamp;
+	}
+}

src/main/java/org/qortal/api/model/DatasetStatus.java

@@ -0,0 +1,50 @@
+package org.qortal.api.model;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import java.util.Objects;
+
+// All properties to be converted to JSON via JAXB
+@XmlAccessorType(XmlAccessType.FIELD)
+public class DatasetStatus {
+
+    private String name;
+
+    private long count;
+
+    public DatasetStatus() {}
+
+    public DatasetStatus(String name, long count) {
+        this.name = name;
+        this.count = count;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public long getCount() {
+        return count;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        DatasetStatus that = (DatasetStatus) o;
+        return count == that.count && Objects.equals(name, that.name);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, count);
+    }
+
+    @Override
+    public String toString() {
+        return "DatasetStatus{" +
+                "name='" + name + '\'' +
+                ", count=" + count +
+                '}';
+    }
+}

src/main/java/org/qortal/api/model/crosschain/BitcoinyTBDRequest.java

@@ -0,0 +1,692 @@
+package org.qortal.api.model.crosschain;
+
+import org.qortal.crosschain.ServerInfo;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import java.util.Arrays;
+
+@XmlAccessorType(XmlAccessType.FIELD)
+public class BitcoinyTBDRequest {
+
+    /**
+     * Target Timespan
+     *
+     * extracted from /src/chainparams.cpp class
+     * consensus.nPowTargetTimespan
+     */
+    private int targetTimespan;
+
+    /**
+     * Target Spacing
+     *
+     * extracted from /src/chainparams.cpp class
+     * consensus.nPowTargetSpacing
+     */
+    private int targetSpacing;
+
+    /**
+     * Packet Magic
+     *
+     * extracted from /src/chainparams.cpp class
+     * Concatenate the 4 values in pchMessageStart, then convert the hex to decimal.
+     *
+     * Ex. litecoin
+     * pchMessageStart[0] = 0xfb;
+     * pchMessageStart[1] = 0xc0;
+     * pchMessageStart[2] = 0xb6;
+     * pchMessageStart[3] = 0xdb;
+     * packetMagic = 0xfbc0b6db = 4223710939
+     */
+    private long packetMagic;
+
+    /**
+     * Port
+     *
+     * extracted from /src/chainparams.cpp class
+     * nDefaultPort
+     */
+    private int port;
+
+    /**
+     * Address Header
+     *
+     * extracted from /src/chainparams.cpp class
+     * base58Prefixes[PUBKEY_ADDRESS] from Main Network
+     */
+    private int addressHeader;
+
+    /**
+     * P2sh Header
+     *
+     * extracted from /src/chainparams.cpp class
+     * base58Prefixes[SCRIPT_ADDRESS] from Main Network
+     */
+    private int p2shHeader;
+
+    /**
+     * Segwit Address Hrp
+     *
+     * HRP -> Human Readable Parts
+     *
+     * extracted from /src/chainparams.cpp class
+     * bech32_hrp
+     */
+    private String segwitAddressHrp;
+
+    /**
+     * Dumped Private Key Header
+     *
+     * extracted from /src/chainparams.cpp class
+     * base58Prefixes[SECRET_KEY] from Main Network
+     * This is usually, but not always ... addressHeader + 128
+     */
+    private int dumpedPrivateKeyHeader;
+
+    /**
+     * Subsidy Decreased Block Count
+     *
+     * extracted from /src/chainparams.cpp class
+     * consensus.nSubsidyHalvingInterval
+     *
+     * Digibyte does not support this, because they do halving differently.
+     */
+    private int subsidyDecreaseBlockCount;
+
+    /**
+     * Expected Genesis Hash
+     *
+     * extracted from /src/chainparams.cpp class
+     * consensus.hashGenesisBlock
+     * Remove '0x' prefix
+     */
+    private String expectedGenesisHash;
+
+    /**
+     * Common Script Pub Key
+     *
+     * extracted from /src/chainparams.cpp class
+     * This is the key commonly used to sign alerts for altcoins. Bitcoin and Digibyte are know exceptions.
+     */
+    public static final String SCRIPT_PUB_KEY = "040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9";
+
+    /**
+     * The Script Pub Key
+     *
+     * extracted from /src/chainparams.cpp class
+     * The key to sign alerts.
+     *
+     * const CScript genesisOutputScript = CScript() << ParseHex("040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9") << OP_CHECKSIG;
+     *
+     * ie LTC = 040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9
+     *
+     * this may be the same value as scripHex
+     */
+    private String pubKey;
+
+    /**
+     * DNS Seeds
+     *
+     * extracted from /src/chainparams.cpp class
+     * vSeeds
+     */
+    private String[] dnsSeeds;
+
+    /**
+     * BIP32 Header P2PKH Pub
+     *
+     * extracted from /src/chainparams.cpp class
+     * Concatenate the 4 values in base58Prefixes[EXT_PUBLIC_KEY]
+     * base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E} = 0x0488B21E
+     */
+    private int bip32HeaderP2PKHpub;
+
+    /**
+     * BIP32 Header P2PKH Priv
+     *
+     * extracted from /src/chainparams.cpp class
+     * Concatenate the 4 values in base58Prefixes[EXT_SECRET_KEY]
+     * base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4} = 0x0488ADE4
+     */
+    private int bip32HeaderP2PKHpriv;
+
+    /**
+     * Address Header (Testnet)
+     *
+     * extracted from /src/chainparams.cpp class
+     * base58Prefixes[PUBKEY_ADDRESS] from Testnet
+     */
+    private int addressHeaderTestnet;
+
+    /**
+     * BIP32 Header P2PKH Pub (Testnet)
+     *
+     * extracted from /src/chainparams.cpp class
+     * Concatenate the 4 values in base58Prefixes[EXT_PUBLIC_KEY]
+     * base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E} = 0x0488B21E
+     */
+    private int bip32HeaderP2PKHpubTestnet;
+
+    /**
+     * BIP32 Header P2PKH Priv (Testnet)
+     *
+     * extracted from /src/chainparams.cpp class
+     * Concatenate the 4 values in base58Prefixes[EXT_SECRET_KEY]
+     * base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4} = 0x0488ADE4
+     */
+    private int bip32HeaderP2PKHprivTestnet;
+
+    /**
+     * Id
+     *
+     * "org.litecoin.production" for LTC
+     * I'm guessing this just has to match others for trading purposes.
+     */
+    private String id;
+
+    /**
+     * Majority Enforce Block Upgrade
+     *
+     * All coins are setting this to 750, except DOGE is setting this to 1500.
+     */
+    private int majorityEnforceBlockUpgrade;
+
+    /**
+     * Majority Reject Block Outdated
+     *
+     * All coins are setting this to 950, except DOGE is setting this to 1900.
+     */
+    private int majorityRejectBlockOutdated;
+
+    /**
+     * Majority Window
+     *
+     * All coins are setting this to 1000, except DOGE is setting this to 2000.
+     */
+    private int majorityWindow;
+
+    /**
+     * Code
+     *
+     * "LITE" for LTC
+     * Currency code for full unit.
+     */
+    private String code;
+
+    /**
+     * mCode
+     *
+     * "mLITE" for LTC
+     * Currency code for milli unit.
+     */
+    private String mCode;
+
+    /**
+     * Base Code
+     *
+     * "Liteoshi" for LTC
+     * Currency code for base unit.
+     */
+    private String baseCode;
+
+    /**
+     * Min Non Dust Output
+     *
+     * 100000 for LTC, web search for minimum transaction fee per kB
+     */
+    private int minNonDustOutput;
+
+    /**
+     * URI Scheme
+     *
+     * uriScheme = "litecoin" for LTC
+     * Do a web search to find this value.
+     */
+    private String uriScheme;
+
+    /**
+     * Protocol Version Minimum
+     *
+     * 70002 for LTC
+     * extracted from /src/protocol.h class
+     */
+    private int protocolVersionMinimum;
+
+    /**
+     * Protocol Version Current
+     *
+     * 70003 for LTC
+     * extracted from /src/protocol.h class
+     */
+    private int protocolVersionCurrent;
+
+    /**
+     * Has Max Money
+     *
+     * false for DOGE, true for BTC and LTC
+     */
+    private boolean hasMaxMoney;
+
+    /**
+     * Max Money
+     *
+     * 84000000 for LTC, 21000000 for BTC
+     * extracted from src/amount.h class
+     */
+    private long maxMoney;
+
+    /**
+     * Currency Code
+     *
+     * The trading symbol, ie LTC, BTC, DOGE
+     */
+    private String currencyCode;
+
+    /**
+     * Minimum Order Amount
+     *
+     * web search, LTC minimumOrderAmount = 1000000, 0.01 LTC minimum order to avoid dust errors
+     */
+    private long minimumOrderAmount;
+
+    /**
+     * Fee Per Kb
+     *
+     * web search, LTC feePerKb = 10000, 0.0001 LTC per 1000 bytes
+     */
+    private long feePerKb;
+
+    /**
+     * Network Name
+     *
+     * ie Litecoin-MAIN
+     */
+    private String networkName;
+
+    /**
+     * Fee Ceiling
+     *
+     *  web search, LTC fee ceiling = 1000L
+     */
+    private long feeCeiling;
+
+    /**
+     * Extended Public Key
+     *
+     * xpub for operations that require wallet watching
+     */
+    private String extendedPublicKey;
+
+    /**
+     * Send Amount
+     *
+     * The amount to send in base units. Also, requires sending fee per byte, receiving address and sender's extended private key.
+     */
+    private long sendAmount;
+
+    /**
+     * Sending Fee Per Byte
+     *
+     * The fee to include on a send request in base units. Also, requires receiving address, sender's extended private key and send amount.
+     */
+    private long sendingFeePerByte;
+
+    /**
+     * Receiving Address
+     *
+     * The receiving address for a send request. Also, requires send amount, sender's extended private key and sending fee per byte.
+     */
+    private String receivingAddress;
+
+    /**
+     * Extended Private Key
+     *
+     * xpriv address for a send request. Also, requires receiving address, send amount and sending fee per byte.
+     */
+    private String extendedPrivateKey;
+
+    /**
+     * Server Info
+     *
+     * For adding, removing, setting current server requests.
+     */
+    private ServerInfo serverInfo;
+
+    /**
+     * Script Sig
+     *
+     * extracted from /src/chainparams.cpp class
+     * pszTimestamp
+     *
+     * transform this value - https://bitcoin.stackexchange.com/questions/13122/scriptsig-coinbase-structure-of-the-genesis-block
+     * ie LTC = 04ffff001d0104404e592054696d65732030352f4f63742f32303131205374657665204a6f62732c204170706c65e280997320566973696f6e6172792c2044696573206174203536
+     * ie DOGE = 04ffff001d0104084e696e746f6e646f
+     */
+    private String scriptSig;
+
+    /**
+     * Script Hex
+     *
+     * extracted from /src/chainparams.cpp class
+     * genesisOutputScript
+     *
+     * ie LTC = 040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9
+     *
+     * this may be the same value as pubKey
+     */
+    private String scriptHex;
+
+    /**
+     * Reward
+     *
+     * extracted from /src/chainparams.cpp class
+     * CreateGenesisBlock(..., [reward] * COIN)
+     *
+     * ie LTC = 50, BTC = 50, DOGE = 88
+     */
+    private int reward;
+
+    /**
+     * Genesis Creation Version
+     */
+    private int genesisCreationVersion;
+
+    /**
+     * Genesis Block Version
+     */
+    private long genesisBlockVersion;
+
+    /**
+     * Genesis Time
+     *
+     * extracted from /src/chainparams.cpp class
+     * CreateGenesisBlock(nTime, ...)
+     *
+     * ie LTC = 1317972665
+     */
+    private long genesisTime;
+
+    /**
+     * Difficulty Target
+     *
+     * extracted from /src/chainparams.cpp class
+     * CreateGenesisBlock(genesisTime, nonce, difficultyTarget, 1, reward * COIN);
+     *
+     * convert from hex to decimal
+     *
+     * ie LTC = 0x1e0ffff0 = 504365040
+     */
+    private long difficultyTarget;
+
+    /**
+     * Merkle Hex
+     */
+    private String merkleHex;
+
+    /**
+     * Nonce
+     *
+     * extracted from /src/chainparams.cpp class
+     * CreateGenesisBlock(genesisTime, nonce, difficultyTarget, 1, reward * COIN);
+     *
+     * ie LTC = 2084524493
+     */
+    private long nonce;
+
+
+    public int getTargetTimespan() {
+        return targetTimespan;
+    }
+
+    public int getTargetSpacing() {
+        return targetSpacing;
+    }
+
+    public long getPacketMagic() {
+        return packetMagic;
+    }
+
+    public int getPort() {
+        return port;
+    }
+
+    public int getAddressHeader() {
+        return addressHeader;
+    }
+
+    public int getP2shHeader() {
+        return p2shHeader;
+    }
+
+    public String getSegwitAddressHrp() {
+        return segwitAddressHrp;
+    }
+
+    public int getDumpedPrivateKeyHeader() {
+        return dumpedPrivateKeyHeader;
+    }
+
+    public int getSubsidyDecreaseBlockCount() {
+        return subsidyDecreaseBlockCount;
+    }
+
+    public String getExpectedGenesisHash() {
+        return expectedGenesisHash;
+    }
+
+    public String getPubKey() {
+        return pubKey;
+    }
+
+    public String[] getDnsSeeds() {
+        return dnsSeeds;
+    }
+
+    public int getBip32HeaderP2PKHpub() {
+        return bip32HeaderP2PKHpub;
+    }
+
+    public int getBip32HeaderP2PKHpriv() {
+        return bip32HeaderP2PKHpriv;
+    }
+
+    public int getAddressHeaderTestnet() {
+        return addressHeaderTestnet;
+    }
+
+    public int getBip32HeaderP2PKHpubTestnet() {
+        return bip32HeaderP2PKHpubTestnet;
+    }
+
+    public int getBip32HeaderP2PKHprivTestnet() {
+        return bip32HeaderP2PKHprivTestnet;
+    }
+
+    public String getId() {
+        return  this.id;
+    }
+
+    public int getMajorityEnforceBlockUpgrade() {
+        return this.majorityEnforceBlockUpgrade;
+    }
+
+    public int getMajorityRejectBlockOutdated() {
+        return this.majorityRejectBlockOutdated;
+    }
+
+    public int getMajorityWindow() {
+        return this.majorityWindow;
+    }
+
+    public String getCode() {
+        return this.code;
+    }
+
+    public String getmCode() {
+        return this.mCode;
+    }
+
+    public String getBaseCode() {
+        return this.baseCode;
+    }
+
+    public int getMinNonDustOutput() {
+        return this.minNonDustOutput;
+    }
+
+    public String getUriScheme() {
+        return this.uriScheme;
+    }
+
+    public int getProtocolVersionMinimum() {
+        return this.protocolVersionMinimum;
+    }
+
+    public int getProtocolVersionCurrent() {
+        return this.protocolVersionCurrent;
+    }
+
+    public boolean isHasMaxMoney() {
+        return this.hasMaxMoney;
+    }
+
+    public long getMaxMoney() {
+        return this.maxMoney;
+    }
+
+    public String getCurrencyCode() {
+        return this.currencyCode;
+    }
+
+    public long getMinimumOrderAmount() {
+        return this.minimumOrderAmount;
+    }
+
+    public long getFeePerKb() {
+        return this.feePerKb;
+    }
+
+    public String getNetworkName() {
+        return this.networkName;
+    }
+
+    public long getFeeCeiling() {
+        return this.feeCeiling;
+    }
+
+    public String getExtendedPublicKey() {
+        return this.extendedPublicKey;
+    }
+
+    public long getSendAmount() {
+        return this.sendAmount;
+    }
+
+    public long getSendingFeePerByte() {
+        return this.sendingFeePerByte;
+    }
+
+    public String getReceivingAddress() {
+        return this.receivingAddress;
+    }
+
+    public String getExtendedPrivateKey() {
+        return this.extendedPrivateKey;
+    }
+
+    public ServerInfo getServerInfo() {
+        return this.serverInfo;
+    }
+
+    public String getScriptSig() {
+        return this.scriptSig;
+    }
+
+    public String getScriptHex() {
+        return this.scriptHex;
+    }
+
+    public int getReward() {
+        return this.reward;
+    }
+
+    public int getGenesisCreationVersion() {
+        return this.genesisCreationVersion;
+    }
+
+    public long getGenesisBlockVersion() {
+        return this.genesisBlockVersion;
+    }
+
+    public long getGenesisTime() {
+        return this.genesisTime;
+    }
+
+    public long getDifficultyTarget() {
+        return this.difficultyTarget;
+    }
+
+    public String getMerkleHex() {
+        return this.merkleHex;
+    }
+
+    public long getNonce() {
+        return this.nonce;
+    }
+
+    @Override
+    public String toString() {
+        return "BitcoinyTBDRequest{" +
+                "targetTimespan=" + targetTimespan +
+                ", targetSpacing=" + targetSpacing +
+                ", packetMagic=" + packetMagic +
+                ", port=" + port +
+                ", addressHeader=" + addressHeader +
+                ", p2shHeader=" + p2shHeader +
+                ", segwitAddressHrp='" + segwitAddressHrp + '\'' +
+                ", dumpedPrivateKeyHeader=" + dumpedPrivateKeyHeader +
+                ", subsidyDecreaseBlockCount=" + subsidyDecreaseBlockCount +
+                ", expectedGenesisHash='" + expectedGenesisHash + '\'' +
+                ", pubKey='" + pubKey + '\'' +
+                ", dnsSeeds=" + Arrays.toString(dnsSeeds) +
+                ", bip32HeaderP2PKHpub=" + bip32HeaderP2PKHpub +
+                ", bip32HeaderP2PKHpriv=" + bip32HeaderP2PKHpriv +
+                ", addressHeaderTestnet=" + addressHeaderTestnet +
+                ", bip32HeaderP2PKHpubTestnet=" + bip32HeaderP2PKHpubTestnet +
+                ", bip32HeaderP2PKHprivTestnet=" + bip32HeaderP2PKHprivTestnet +
+                ", id='" + id + '\'' +
+                ", majorityEnforceBlockUpgrade=" + majorityEnforceBlockUpgrade +
+                ", majorityRejectBlockOutdated=" + majorityRejectBlockOutdated +
+                ", majorityWindow=" + majorityWindow +
+                ", code='" + code + '\'' +
+                ", mCode='" + mCode + '\'' +
+                ", baseCode='" + baseCode + '\'' +
+                ", minNonDustOutput=" + minNonDustOutput +
+                ", uriScheme='" + uriScheme + '\'' +
+                ", protocolVersionMinimum=" + protocolVersionMinimum +
+                ", protocolVersionCurrent=" + protocolVersionCurrent +
+                ", hasMaxMoney=" + hasMaxMoney +
+                ", maxMoney=" + maxMoney +
+                ", currencyCode='" + currencyCode + '\'' +
+                ", minimumOrderAmount=" + minimumOrderAmount +
+                ", feePerKb=" + feePerKb +
+                ", networkName='" + networkName + '\'' +
+                ", feeCeiling=" + feeCeiling +
+                ", extendedPublicKey='" + extendedPublicKey + '\'' +
+                ", sendAmount=" + sendAmount +
+                ", sendingFeePerByte=" + sendingFeePerByte +
+                ", receivingAddress='" + receivingAddress + '\'' +
+                ", extendedPrivateKey='" + extendedPrivateKey + '\'' +
+                ", serverInfo=" + serverInfo +
+                ", scriptSig='" + scriptSig + '\'' +
+                ", scriptHex='" + scriptHex + '\'' +
+                ", reward=" + reward +
+                ", genesisCreationVersion=" + genesisCreationVersion +
+                ", genesisBlockVersion=" + genesisBlockVersion +
+                ", genesisTime=" + genesisTime +
+                ", difficultyTarget=" + difficultyTarget +
+                ", merkleHex='" + merkleHex + '\'' +
+                ", nonce=" + nonce +
+                '}';
+    }
+}

src/main/java/org/qortal/api/model/crosschain/TradeBotRespondRequests.java

@@ -0,0 +1,68 @@
+package org.qortal.api.model.crosschain;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlElement;
+import java.util.List;
+
+@XmlAccessorType(XmlAccessType.FIELD)
+public class TradeBotRespondRequests {
+
+	@Schema(description = "Foreign blockchain private key, e.g. BIP32 'm' key for Bitcoin/Litecoin starting with 'xprv'",
+			example = "xprv___________________________________________________________________________________________________________")
+	public String foreignKey;
+
+	@Schema(description = "List of address matches")
+	@XmlElement(name = "addresses")
+	public List<String> addresses;
+
+	@Schema(description = "Qortal address for receiving QORT from AT", example = "Qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq")
+	public String receivingAddress;
+
+	public TradeBotRespondRequests() {
+	}
+
+	public TradeBotRespondRequests(String foreignKey, List<String> addresses, String receivingAddress) {
+		this.foreignKey = foreignKey;
+		this.addresses = addresses;
+		this.receivingAddress = receivingAddress;
+	}
+
+	@Schema(description = "Address Match")
+	// All properties to be converted to JSON via JAX-RS
+	@XmlAccessorType(XmlAccessType.FIELD)
+	public static class AddressMatch {
+		@Schema(description = "AT Address")
+		public String atAddress;
+
+		@Schema(description = "Receiving Address")
+		public String receivingAddress;
+
+		// For JAX-RS
+		protected AddressMatch() {
+		}
+
+		public AddressMatch(String atAddress, String receivingAddress) {
+			this.atAddress = atAddress;
+			this.receivingAddress = receivingAddress;
+		}
+
+		@Override
+		public String toString() {
+			return "AddressMatch{" +
+					"atAddress='" + atAddress + '\'' +
+					", receivingAddress='" + receivingAddress + '\'' +
+					'}';
+		}
+	}
+
+	@Override
+	public String toString() {
+		return "TradeBotRespondRequests{" +
+				"foreignKey='" + foreignKey + '\'' +
+				", addresses=" + addresses +
+				'}';
+	}
+}

src/main/java/org/qortal/api/resource/AddressesResource.java

@@ -20,9 +20,7 @@ import org.qortal.asset.Asset;
 import org.qortal.controller.LiteNode;
 import org.qortal.controller.OnlineAccountsManager;
 import org.qortal.crypto.Crypto;
-import org.qortal.data.account.AccountData;
-import org.qortal.data.account.AccountPenaltyData;
-import org.qortal.data.account.RewardShareData;
+import org.qortal.data.account.*;
 import org.qortal.data.network.OnlineAccountData;
 import org.qortal.data.network.OnlineAccountLevel;
 import org.qortal.data.transaction.PublicizeTransactionData;
@@ -52,6 +50,7 @@ import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.List;
+import java.util.Optional;
 import java.util.stream.Collectors;
 
 @Path("/addresses")
@@ -327,11 +326,8 @@ public class AddressesResource {
 			)
 		}
 	)
-	@ApiErrors({ApiError.INVALID_PUBLIC_KEY, ApiError.NON_PRODUCTION, ApiError.REPOSITORY_ISSUE})
+	@ApiErrors({ApiError.INVALID_PUBLIC_KEY, ApiError.REPOSITORY_ISSUE})
 	public String fromPublicKey(@PathParam("publickey") String publicKey58) {
-		if (Settings.getInstance().isApiRestricted())
-			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.NON_PRODUCTION);
-
 		// Decode public key
 		byte[] publicKey;
 		try {
@@ -630,4 +626,160 @@ public class AddressesResource {
 		}
 	}
 
-}
+	@GET
+	@Path("/sponsorship/{address}")
+	@Operation(
+			summary = "Returns sponsorship statistics for an account",
+			description = "Returns sponsorship statistics for an account, excluding the recipients that get real reward shares",
+			responses = {
+					@ApiResponse(
+							description = "the statistics",
+							content = @Content(mediaType = MediaType.APPLICATION_JSON, schema = @Schema(implementation = SponsorshipReport.class))
+					)
+			}
+	)
+	@ApiErrors({ApiError.INVALID_ADDRESS, ApiError.ADDRESS_UNKNOWN,  ApiError.REPOSITORY_ISSUE})
+	public SponsorshipReport getSponsorshipReport(
+			@PathParam("address") String address,
+			@QueryParam(("realRewardShareRecipient")) String[] realRewardShareRecipients) {
+		if (!Crypto.isValidAddress(address))
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
+
+		try (final Repository repository = RepositoryManager.getRepository()) {
+			SponsorshipReport report = repository.getAccountRepository().getSponsorshipReport(address, realRewardShareRecipients);
+			// Not found?
+			if (report == null)
+				throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.ADDRESS_UNKNOWN);
+
+			return report;
+		} catch (DataException e) {
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.REPOSITORY_ISSUE, e);
+		}
+	}
+
+	@GET
+	@Path("/sponsorship/{address}/sponsor")
+	@Operation(
+			summary = "Returns sponsorship statistics for an account's sponsor",
+			description = "Returns sponsorship statistics for an account's sponsor, excluding the recipients that get real reward shares",
+			responses = {
+					@ApiResponse(
+							description = "the statistics",
+							content = @Content(mediaType = MediaType.APPLICATION_JSON, schema = @Schema(implementation = SponsorshipReport.class))
+					)
+			}
+	)
+	@ApiErrors({ApiError.INVALID_ADDRESS, ApiError.ADDRESS_UNKNOWN,  ApiError.REPOSITORY_ISSUE})
+	public SponsorshipReport getSponsorshipReportForSponsor(
+			@PathParam("address") String address,
+			@QueryParam("realRewardShareRecipient") String[] realRewardShareRecipients) {
+		if (!Crypto.isValidAddress(address))
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
+
+		try (final Repository repository = RepositoryManager.getRepository()) {
+
+			// get sponsor
+			Optional<String> sponsor = repository.getAccountRepository().getSponsor(address);
+
+			// if there is not sponsor, throw error
+			if(sponsor.isEmpty()) throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.ADDRESS_UNKNOWN);
+
+			// get report for sponsor
+			SponsorshipReport report = repository.getAccountRepository().getSponsorshipReport(sponsor.get(), realRewardShareRecipients);
+
+			// Not found?
+			if (report == null)
+				throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.ADDRESS_UNKNOWN);
+
+			return report;
+		} catch (DataException e) {
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.REPOSITORY_ISSUE, e);
+		}
+	}
+
+	@GET
+	@Path("/mintership/{address}")
+	@Operation(
+			summary = "Returns mintership statistics for an account",
+			description = "Returns mintership statistics for an account",
+			responses = {
+					@ApiResponse(
+							description = "the statistics",
+							content = @Content(mediaType = MediaType.APPLICATION_JSON, schema = @Schema(implementation = MintershipReport.class))
+					)
+			}
+	)
+	@ApiErrors({ApiError.INVALID_ADDRESS, ApiError.ADDRESS_UNKNOWN,  ApiError.REPOSITORY_ISSUE})
+	public MintershipReport getMintershipReport(@PathParam("address") String address,
+												@QueryParam("realRewardShareRecipient") String[] realRewardShareRecipients ) {
+		if (!Crypto.isValidAddress(address))
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
+
+		try (final Repository repository = RepositoryManager.getRepository()) {
+
+			// get sponsorship report for minter, fetch a list of one minter
+			SponsorshipReport report = repository.getAccountRepository().getMintershipReport(address, account -> List.of(account));
+
+			// Not found?
+			if (report == null)
+				throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.ADDRESS_UNKNOWN);
+
+			// since the report is for one minter, must get sponsee count separately
+			int sponseeCount = repository.getAccountRepository().getSponseeAddresses(address, realRewardShareRecipients).size();
+
+			// since the report is for one minter, must get the first name from a array of names that should be size 1
+			String name = report.getNames().length > 0 ? report.getNames()[0] : null;
+
+			// transform sponsorship report to mintership report
+			MintershipReport mintershipReport
+				= new MintershipReport(
+					report.getAddress(),
+					report.getLevel(),
+					report.getBlocksMinted(),
+					report.getAdjustments(),
+					report.getPenalties(),
+					report.isTransfer(),
+					name,
+					sponseeCount,
+					report.getAvgBalance(),
+					report.getArbitraryCount(),
+					report.getTransferAssetCount(),
+					report.getTransferPrivsCount(),
+					report.getSellCount(),
+					report.getSellAmount(),
+					report.getBuyCount(),
+					report.getBuyAmount()
+			);
+
+			return mintershipReport;
+		} catch (DataException e) {
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.REPOSITORY_ISSUE, e);
+		}
+	}
+
+	@GET
+	@Path("/levels/{minLevel}")
+	@Operation(
+			summary = "Return accounts with levels greater than or equal to input",
+			responses = {
+					@ApiResponse(
+							description = "online accounts",
+							content = @Content(mediaType = MediaType.APPLICATION_JSON, array = @ArraySchema(schema = @Schema(implementation = AddressLevelPairing.class)))
+					)
+			}
+	)
+	@ApiErrors({ApiError.REPOSITORY_ISSUE})
+
+	public List<AddressLevelPairing> getAddressLevelPairings(@PathParam("minLevel") int minLevel) {
+
+		try (final Repository repository = RepositoryManager.getRepository()) {
+
+			// get the level address pairings
+			List<AddressLevelPairing> pairings = repository.getAccountRepository().getAddressLevelPairings(minLevel);
+
+			return pairings;
+		} catch (DataException e) {
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.REPOSITORY_ISSUE, e);
+		}
+	}
+}

src/main/java/org/qortal/api/resource/ArbitraryResource.java

@@ -33,9 +33,13 @@ import org.qortal.controller.arbitrary.ArbitraryDataStorageManager;
 import org.qortal.controller.arbitrary.ArbitraryMetadataManager;
 import org.qortal.data.account.AccountData;
 import org.qortal.data.arbitrary.ArbitraryCategoryInfo;
+import org.qortal.data.arbitrary.ArbitraryDataIndexDetail;
+import org.qortal.data.arbitrary.ArbitraryDataIndexScoreKey;
+import org.qortal.data.arbitrary.ArbitraryDataIndexScorecard;
 import org.qortal.data.arbitrary.ArbitraryResourceData;
 import org.qortal.data.arbitrary.ArbitraryResourceMetadata;
 import org.qortal.data.arbitrary.ArbitraryResourceStatus;
+import org.qortal.data.arbitrary.IndexCache;
 import org.qortal.data.naming.NameData;
 import org.qortal.data.transaction.ArbitraryTransactionData;
 import org.qortal.data.transaction.TransactionData;
@@ -69,8 +73,11 @@ import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Comparator;
 import java.util.List;
+import java.util.Map;
 import java.util.Objects;
+import java.util.stream.Collectors;
 
 @Path("/arbitrary")
 @Tag(name = "Arbitrary")
@@ -172,6 +179,7 @@ public class ArbitraryResource {
 			@Parameter(description = "Name (searches name field only)") @QueryParam("name") List<String> names,
 			@Parameter(description = "Title (searches title metadata field only)") @QueryParam("title") String title,
 			@Parameter(description = "Description (searches description metadata field only)") @QueryParam("description") String description,
+			@Parameter(description = "Keyword (searches description metadata field by keywords)") @QueryParam("keywords") List<String> keywords,
 			@Parameter(description = "Prefix only (if true, only the beginning of fields are matched)") @QueryParam("prefix") Boolean prefixOnly,
 			@Parameter(description = "Exact match names only (if true, partial name matches are excluded)") @QueryParam("exactmatchnames") Boolean exactMatchNamesOnly,
 			@Parameter(description = "Default resources (without identifiers) only") @QueryParam("default") Boolean defaultResource,
@@ -212,7 +220,7 @@ public class ArbitraryResource {
 			}
 
 			List<ArbitraryResourceData> resources = repository.getArbitraryRepository()
-					.searchArbitraryResources(service, query, identifier, names, title, description, usePrefixOnly,
+					.searchArbitraryResources(service, query, identifier, names, title, description, keywords, usePrefixOnly,
 							exactMatchNames, defaultRes, mode, minLevel, followedOnly, excludeBlocked, includeMetadata, includeStatus,
 							before, after, limit, offset, reverse);
 
@@ -227,6 +235,49 @@ public class ArbitraryResource {
 		}
 	}
 
+	@GET
+	@Path("/resources/searchsimple")
+	@Operation(
+			summary = "Search arbitrary resources available on chain, optionally filtered by service.",
+			responses = {
+					@ApiResponse(
+							content = @Content(mediaType = MediaType.APPLICATION_JSON, schema = @Schema(implementation = ArbitraryResourceData.class))
+					)
+			}
+	)
+	@ApiErrors({ApiError.REPOSITORY_ISSUE})
+	public List<ArbitraryResourceData> searchResourcesSimple(
+			@QueryParam("service") Service service,
+			@Parameter(description = "Identifier (searches identifier field only)") @QueryParam("identifier") String identifier,
+			@Parameter(description = "Name (searches name field only)") @QueryParam("name") List<String> names,
+			@Parameter(description = "Prefix only (if true, only the beginning of fields are matched)") @QueryParam("prefix") Boolean prefixOnly,
+			@Parameter(description = "Case insensitive (ignore leter case on search)") @QueryParam("caseInsensitive") Boolean caseInsensitive,
+			@Parameter(description = "Creation date before timestamp") @QueryParam("before") Long before,
+			@Parameter(description = "Creation date after timestamp") @QueryParam("after") Long after,
+			@Parameter(ref = "limit") @QueryParam("limit") Integer limit,
+			@Parameter(ref = "offset") @QueryParam("offset") Integer offset,
+			@Parameter(ref = "reverse") @QueryParam("reverse") Boolean reverse) {
+
+		try (final Repository repository = RepositoryManager.getRepository()) {
+
+			boolean usePrefixOnly = Boolean.TRUE.equals(prefixOnly);
+			boolean ignoreCase = Boolean.TRUE.equals(caseInsensitive);
+
+			List<ArbitraryResourceData> resources = repository.getArbitraryRepository()
+					.searchArbitraryResourcesSimple(service, identifier, names, usePrefixOnly,
+							before, after, limit, offset, reverse, ignoreCase);
+
+			if (resources == null) {
+				return new ArrayList<>();
+			}
+
+			return resources;
+
+		} catch (DataException e) {
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.REPOSITORY_ISSUE, e);
+		}
+	}
+
 	@GET
 	@Path("/resource/status/{service}/{name}")
 	@Operation(
@@ -1142,6 +1193,90 @@ public class ArbitraryResource {
 		}
 	}
 
+	@GET
+	@Path("/indices")
+	@Operation(
+			summary = "Find matching arbitrary resource indices",
+			description = "",
+			responses = {
+					@ApiResponse(
+							description = "indices",
+							content = @Content(
+									array = @ArraySchema(
+											schema = @Schema(
+													implementation = ArbitraryDataIndexScorecard.class
+											)
+									)
+							)
+					)
+			}
+	)
+	public List<ArbitraryDataIndexScorecard> searchIndices(@QueryParam("terms") String[] terms) {
+
+		List<ArbitraryDataIndexDetail> indices = new ArrayList<>();
+
+		// get index details for each term
+		for( String term : terms ) {
+			List<ArbitraryDataIndexDetail> details = IndexCache.getInstance().getIndicesByTerm().get(term);
+
+			if( details != null ) {
+				indices.addAll(details);
+			}
+		}
+
+		// sum up the scores for each index with identical attributes
+		Map<ArbitraryDataIndexScoreKey, Double> scoreForKey
+			= indices.stream()
+				.collect(
+					Collectors.groupingBy(
+						index -> new ArbitraryDataIndexScoreKey(index.name, index.category, index.link),
+						Collectors.summingDouble(detail -> 1.0 / detail.rank)
+					)
+				);
+
+		// create scorecards for each index group and put them in descending order by score
+		List<ArbitraryDataIndexScorecard> scorecards
+			= scoreForKey.entrySet().stream().map(
+				entry
+				->
+				new ArbitraryDataIndexScorecard(
+					entry.getValue(),
+					entry.getKey().name,
+					entry.getKey().category,
+					entry.getKey().link)
+				)
+				.sorted(Comparator.comparingDouble(ArbitraryDataIndexScorecard::getScore).reversed())
+				.collect(Collectors.toList());
+
+		return scorecards;
+	}
+
+	@GET
+	@Path("/indices/{name}/{idPrefix}")
+	@Operation(
+			summary = "Find matching arbitrary resource indices for a registered name and identifier prefix",
+			description = "",
+			responses = {
+					@ApiResponse(
+							description = "indices",
+							content = @Content(
+									array = @ArraySchema(
+											schema = @Schema(
+													implementation = ArbitraryDataIndexDetail.class
+											)
+									)
+							)
+					)
+			}
+	)
+	public List<ArbitraryDataIndexDetail> searchIndicesByName(@PathParam("name") String name, @PathParam("idPrefix") String idPrefix) {
+
+		return
+			IndexCache.getInstance().getIndicesByIssuer()
+				.getOrDefault(name, new ArrayList<>(0)).stream()
+					.filter( indexDetail -> indexDetail.indexIdentifer.startsWith(idPrefix))
+					.collect(Collectors.toList());
+	}
 
 	// Shared methods
 

src/main/java/org/qortal/api/resource/AssetsResource.java

@@ -16,9 +16,13 @@ import org.qortal.api.model.AggregatedOrder;
 import org.qortal.api.model.TradeWithOrderInfo;
 import org.qortal.api.resource.TransactionsResource.ConfirmationStatus;
 import org.qortal.asset.Asset;
+import org.qortal.controller.hsqldb.HSQLDBBalanceRecorder;
 import org.qortal.crypto.Crypto;
 import org.qortal.data.account.AccountBalanceData;
 import org.qortal.data.account.AccountData;
+import org.qortal.data.account.AddressAmountData;
+import org.qortal.data.account.BlockHeightRange;
+import org.qortal.data.account.BlockHeightRangeAddressAmounts;
 import org.qortal.data.asset.AssetData;
 import org.qortal.data.asset.OrderData;
 import org.qortal.data.asset.RecentTradeData;
@@ -33,6 +37,7 @@ import org.qortal.transaction.Transaction;
 import org.qortal.transaction.Transaction.ValidationResult;
 import org.qortal.transform.TransformationException;
 import org.qortal.transform.transaction.*;
+import org.qortal.utils.BalanceRecorderUtils;
 import org.qortal.utils.Base58;
 
 import javax.servlet.http.HttpServletRequest;
@@ -42,6 +47,7 @@ import javax.ws.rs.core.MediaType;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.Optional;
 import java.util.stream.Collectors;
 
 @Path("/assets")
@@ -179,6 +185,122 @@ public class AssetsResource {
 		}
 	}
 
+	@GET
+	@Path("/balancedynamicranges")
+	@Operation(
+			summary = "Get balance dynamic ranges listed.",
+			description = ".",
+			responses = {
+					@ApiResponse(
+							content = @Content(
+									array = @ArraySchema(
+											schema = @Schema(
+													implementation = BlockHeightRange.class
+											)
+									)
+							)
+					)
+			}
+	)
+	public List<BlockHeightRange> getBalanceDynamicRanges(
+			@Parameter(ref = "offset") @QueryParam("offset") Integer offset,
+			@Parameter(ref = "limit") @QueryParam("limit") Integer limit,
+			@Parameter(ref = "reverse") @QueryParam("reverse") Boolean reverse) {
+
+		Optional<HSQLDBBalanceRecorder> recorder = HSQLDBBalanceRecorder.getInstance();
+
+		if( recorder.isPresent()) {
+			return recorder.get().getRanges(offset, limit, reverse);
+		}
+		else {
+			return new ArrayList<>(0);
+		}
+	}
+
+	@GET
+	@Path("/balancedynamicrange/{height}")
+	@Operation(
+			summary = "Get balance dynamic range for a given height.",
+			description = ".",
+			responses = {
+					@ApiResponse(
+							content = @Content(
+										schema = @Schema(
+												implementation = BlockHeightRange.class
+										)
+							)
+					)
+			}
+	)
+	@ApiErrors({
+			ApiError.INVALID_CRITERIA, ApiError.INVALID_DATA
+	})
+	public BlockHeightRange getBalanceDynamicRange(@PathParam("height") int height) {
+
+		Optional<HSQLDBBalanceRecorder> recorder = HSQLDBBalanceRecorder.getInstance();
+
+		if( recorder.isPresent()) {
+			Optional<BlockHeightRange> range = recorder.get().getRange(height);
+
+			if( range.isPresent() ) {
+				return range.get();
+			}
+			else {
+				throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_CRITERIA);
+			}
+		}
+		else {
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_DATA);
+		}
+	}
+
+	@GET
+	@Path("/balancedynamicamounts/{begin}/{end}")
+	@Operation(
+			summary = "Get balance dynamic ranges address amounts listed.",
+			description = ".",
+			responses = {
+					@ApiResponse(
+							content = @Content(
+									array = @ArraySchema(
+											schema = @Schema(
+													implementation = AddressAmountData.class
+											)
+									)
+							)
+					)
+			}
+	)
+	@ApiErrors({
+			ApiError.INVALID_CRITERIA, ApiError.INVALID_DATA
+	})
+	public List<AddressAmountData> getBalanceDynamicAddressAmounts(
+			@PathParam("begin") int begin,
+			@PathParam("end") int end,
+			@Parameter(ref = "offset") @QueryParam("offset") Integer offset,
+			@Parameter(ref = "limit") @QueryParam("limit") Integer limit) {
+
+		Optional<HSQLDBBalanceRecorder> recorder = HSQLDBBalanceRecorder.getInstance();
+
+		if( recorder.isPresent()) {
+			Optional<BlockHeightRangeAddressAmounts> addressAmounts = recorder.get().getAddressAmounts(new BlockHeightRange(begin, end, false));
+
+			if( addressAmounts.isPresent() ) {
+				return addressAmounts.get().getAmounts().stream()
+					.sorted(BalanceRecorderUtils.ADDRESS_AMOUNT_DATA_COMPARATOR.reversed())
+					.skip(offset)
+					.limit(limit)
+					.collect(Collectors.toList());
+			}
+			else {
+				throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_CRITERIA);
+			}
+		}
+		else {
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_DATA);
+		}
+	}
+
 	@GET
 	@Path("/openorders/{assetid}/{otherassetid}")
 	@Operation(

src/main/java/org/qortal/api/resource/BlocksResource.java

@@ -19,6 +19,8 @@ import org.qortal.crypto.Crypto;
 import org.qortal.data.account.AccountData;
 import org.qortal.data.block.BlockData;
 import org.qortal.data.block.BlockSummaryData;
+import org.qortal.data.block.DecodedOnlineAccountData;
+import org.qortal.data.network.OnlineAccountData;
 import org.qortal.data.transaction.TransactionData;
 import org.qortal.repository.BlockArchiveReader;
 import org.qortal.repository.DataException;
@@ -27,6 +29,7 @@ import org.qortal.repository.RepositoryManager;
 import org.qortal.transform.TransformationException;
 import org.qortal.transform.block.BlockTransformer;
 import org.qortal.utils.Base58;
+import org.qortal.utils.Blocks;
 import org.qortal.utils.Triple;
 
 import javax.servlet.http.HttpServletRequest;
@@ -45,6 +48,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;
 import java.util.List;
+import java.util.Set;
 
 @Path("/blocks")
 @Tag(name = "Blocks")
@@ -542,6 +546,7 @@ public class BlocksResource {
 				}
 			}
 
+			String minterAddress = Account.getRewardShareMintingAddress(repository, blockData.getMinterPublicKey());
 			int minterLevel = Account.getRewardShareEffectiveMintingLevel(repository, blockData.getMinterPublicKey());
 			if (minterLevel == 0)
 				// This may be unavailable when requesting a trimmed block
@@ -554,6 +559,7 @@ public class BlocksResource {
 
 			BlockMintingInfo blockMintingInfo = new BlockMintingInfo();
 			blockMintingInfo.minterPublicKey = blockData.getMinterPublicKey();
+			blockMintingInfo.minterAddress = minterAddress;
 			blockMintingInfo.minterLevel = minterLevel;
 			blockMintingInfo.onlineAccountsCount = blockData.getOnlineAccountsCount();
 			blockMintingInfo.maxDistance = new BigDecimal(block.MAX_DISTANCE);
@@ -888,4 +894,49 @@ public class BlocksResource {
 		}
 	}
 
-}
+	@GET
+	@Path("/onlineaccounts/{height}")
+	@Operation(
+			summary = "Get online accounts for block",
+			description = "Returns the online accounts who submitted signatures for this block",
+			responses = {
+					@ApiResponse(
+							description = "online accounts",
+							content = @Content(
+									array = @ArraySchema(
+											schema = @Schema(
+													implementation = DecodedOnlineAccountData.class
+											)
+									)
+							)
+					)
+			}
+	)
+	@ApiErrors({
+			ApiError.BLOCK_UNKNOWN, ApiError.REPOSITORY_ISSUE
+	})
+	public Set<DecodedOnlineAccountData> getOnlineAccounts(@PathParam("height") int height) {
+
+		try (final Repository repository = RepositoryManager.getRepository()) {
+
+			// get block from database
+			BlockData blockData = repository.getBlockRepository().fromHeight(height);
+
+			// if block data is not in the database, then try the archive
+			if (blockData == null) {
+				blockData = repository.getBlockArchiveRepository().fromHeight(height);
+
+				// if the block is not in the database or the archive, then the block is unknown
+				if( blockData == null ) {
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.BLOCK_UNKNOWN);
+				}
+			}
+
+			Set<DecodedOnlineAccountData> onlineAccounts = Blocks.getDecodedOnlineAccountsForBlock(repository, blockData);
+
+			return onlineAccounts;
+		} catch (DataException e) {
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.REPOSITORY_ISSUE);
+		}
+	}
+}

src/main/java/org/qortal/api/resource/ChatResource.java

@@ -234,17 +234,21 @@ public class ChatResource {
 		}
 	)
 	@ApiErrors({ApiError.INVALID_CRITERIA, ApiError.INVALID_ADDRESS, ApiError.REPOSITORY_ISSUE})
-	public ActiveChats getActiveChats(@PathParam("address") String address, @QueryParam("encoding") Encoding encoding) {
+	public ActiveChats getActiveChats(
+		@PathParam("address") String address,
+		@QueryParam("encoding") Encoding encoding,
+		@QueryParam("haschatreference") Boolean hasChatReference
+	) {
 		if (address == null || !Crypto.isValidAddress(address))
 			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
-
+	
 		try (final Repository repository = RepositoryManager.getRepository()) {
-			return repository.getChatRepository().getActiveChats(address, encoding);
+			return repository.getChatRepository().getActiveChats(address, encoding, hasChatReference);
 		} catch (DataException e) {
 			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.REPOSITORY_ISSUE, e);
 		}
 	}
-
+	
 	@POST
 	@Operation(
 		summary = "Build raw, unsigned, CHAT transaction",

src/main/java/org/qortal/api/resource/CrossChainHtlcResource.java

@@ -157,7 +157,7 @@ public class CrossChainHtlcResource {
 			htlcStatus.bitcoinP2shAddress = p2shAddress;
 			htlcStatus.bitcoinP2shBalance = BigDecimal.valueOf(p2shBalance, 8);
 
-			List<TransactionOutput> fundingOutputs = bitcoiny.getUnspentOutputs(p2shAddress.toString());
+			List<TransactionOutput> fundingOutputs = bitcoiny.getUnspentOutputs(p2shAddress.toString(), false);
 
 			if (p2shBalance > 0L && !fundingOutputs.isEmpty()) {
 				htlcStatus.canRedeem = now >= medianBlockTime * 1000L;
@@ -401,7 +401,7 @@ public class CrossChainHtlcResource {
 				case FUNDED: {
 					Coin redeemAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 					ECKey redeemKey = ECKey.fromPrivate(decodedTradePrivateKey);
-					List<TransactionOutput> fundingOutputs = bitcoiny.getUnspentOutputs(p2shAddressA);
+					List<TransactionOutput> fundingOutputs = bitcoiny.getUnspentOutputs(p2shAddressA, false);
 
 					Transaction p2shRedeemTransaction = BitcoinyHTLC.buildRedeemTransaction(bitcoiny.getNetworkParameters(), redeemAmount, redeemKey,
 							fundingOutputs, redeemScriptA, decodedSecret, foreignBlockchainReceivingAccountInfo);
@@ -664,7 +664,7 @@ public class CrossChainHtlcResource {
 							// ElectrumX coins
 
 							ECKey refundKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-							List<TransactionOutput> fundingOutputs = bitcoiny.getUnspentOutputs(p2shAddressA);
+							List<TransactionOutput> fundingOutputs = bitcoiny.getUnspentOutputs(p2shAddressA, false);
 
 							// Validate the destination foreign blockchain address
 							Address receiving = Address.fromString(bitcoiny.getNetworkParameters(), receiveAddress);

src/main/java/org/qortal/api/resource/CrossChainResource.java

@@ -10,11 +10,13 @@ import io.swagger.v3.oas.annotations.parameters.RequestBody;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
 import io.swagger.v3.oas.annotations.security.SecurityRequirement;
 import io.swagger.v3.oas.annotations.tags.Tag;
+import org.glassfish.jersey.media.multipart.ContentDisposition;
 import org.qortal.api.ApiError;
 import org.qortal.api.ApiErrors;
 import org.qortal.api.ApiExceptionFactory;
 import org.qortal.api.Security;
 import org.qortal.api.model.CrossChainCancelRequest;
+import org.qortal.api.model.CrossChainTradeLedgerEntry;
 import org.qortal.api.model.CrossChainTradeSummary;
 import org.qortal.controller.tradebot.TradeBot;
 import org.qortal.crosschain.ACCT;
@@ -44,14 +46,20 @@ import org.qortal.utils.Base58;
 import org.qortal.utils.ByteArray;
 import org.qortal.utils.NTP;
 
+import javax.servlet.ServletContext;
 import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
 import javax.ws.rs.*;
 import javax.ws.rs.core.Context;
+import javax.ws.rs.core.HttpHeaders;
 import javax.ws.rs.core.MediaType;
+import java.io.IOException;
 import java.util.*;
 import java.util.function.Supplier;
 import java.util.stream.Collectors;
 
+
+
 @Path("/crosschain")
 @Tag(name = "Cross-Chain")
 public class CrossChainResource {
@@ -59,6 +67,13 @@ public class CrossChainResource {
 	@Context
 	HttpServletRequest request;
 
+	@Context
+	HttpServletResponse response;
+
+	@Context
+	ServletContext context;
+
+
 	@GET
 	@Path("/tradeoffers")
 	@Operation(
@@ -255,6 +270,12 @@ public class CrossChainResource {
 				description = "Only return trades that completed on/after this timestamp (milliseconds since epoch)",
 				example = "1597310000000"
 			) @QueryParam("minimumTimestamp") Long minimumTimestamp,
+			@Parameter(
+				description = "Optionally filter by buyer Qortal public key"
+			) @QueryParam("buyerPublicKey") String buyerPublicKey58,
+			@Parameter(
+				description = "Optionally filter by seller Qortal public key"
+			) @QueryParam("sellerPublicKey") String sellerPublicKey58,
 			@Parameter( ref = "limit") @QueryParam("limit") Integer limit,
 			@Parameter( ref = "offset" ) @QueryParam("offset") Integer offset,
 			@Parameter( ref = "reverse" ) @QueryParam("reverse") Boolean reverse) {
@@ -266,6 +287,10 @@ public class CrossChainResource {
 		if (minimumTimestamp != null && minimumTimestamp <= 0)
 			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_CRITERIA);
 
+		// Decode public keys
+		byte[] buyerPublicKey = decodePublicKey(buyerPublicKey58);
+		byte[] sellerPublicKey = decodePublicKey(sellerPublicKey58);
+
 		final Boolean isFinished = Boolean.TRUE;
 
 		try (final Repository repository = RepositoryManager.getRepository()) {
@@ -296,7 +321,7 @@ public class CrossChainResource {
 				byte[] codeHash = acctInfo.getKey().value;
 				ACCT acct = acctInfo.getValue().get();
 
-				List<ATStateData> atStates = repository.getATRepository().getMatchingFinalATStates(codeHash,
+				List<ATStateData> atStates = repository.getATRepository().getMatchingFinalATStates(codeHash, buyerPublicKey, sellerPublicKey,
 						isFinished, acct.getModeByteOffset(), (long) AcctMode.REDEEMED.value, minimumFinalHeight,
 						limit, offset, reverse);
 
@@ -335,6 +360,120 @@ public class CrossChainResource {
 		}
 	}
 
+	/**
+	 * Decode Public Key
+	 *
+	 * @param publicKey58 the public key in a string
+	 *
+	 * @return the public key in bytes
+	 */
+	private byte[] decodePublicKey(String publicKey58) {
+
+		if( publicKey58 == null ) return null;
+		if( publicKey58.isEmpty() ) return new byte[0];
+
+		byte[] publicKey;
+		try {
+			publicKey = Base58.decode(publicKey58);
+		} catch (NumberFormatException e) {
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_PUBLIC_KEY, e);
+		}
+
+		// Correct size for public key?
+		if (publicKey.length != Transformer.PUBLIC_KEY_LENGTH)
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_PUBLIC_KEY);
+
+		return publicKey;
+	}
+
+	@GET
+	@Path("/ledger/{publicKey}")
+	@Operation(
+			summary = "Accounting entries for all trades.",
+			description = "Returns accounting entries for all completed cross-chain trades",
+			responses = {
+					@ApiResponse(
+							content = @Content(
+									schema = @Schema(
+											type = "string",
+											format = "byte"
+									)
+							)
+					)
+			}
+	)
+	@ApiErrors({ApiError.INVALID_CRITERIA, ApiError.REPOSITORY_ISSUE})
+	public HttpServletResponse getLedgerEntries(
+			@PathParam("publicKey") String publicKey58,
+			@Parameter(
+					description = "Only return trades that completed on/after this timestamp (milliseconds since epoch)",
+					example = "1597310000000"
+			) @QueryParam("minimumTimestamp") Long minimumTimestamp) {
+
+		byte[] publicKey = decodePublicKey(publicKey58);
+
+		// minimumTimestamp (if given) needs to be positive
+		if (minimumTimestamp != null && minimumTimestamp <= 0)
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_CRITERIA);
+
+		try (final Repository repository = RepositoryManager.getRepository()) {
+			Integer minimumFinalHeight = null;
+
+			if (minimumTimestamp != null) {
+				minimumFinalHeight = repository.getBlockRepository().getHeightFromTimestamp(minimumTimestamp);
+				// If not found in the block repository it will return either 0 or 1
+				if (minimumFinalHeight == 0 || minimumFinalHeight == 1) {
+					// Try the archive
+					minimumFinalHeight = repository.getBlockArchiveRepository().getHeightFromTimestamp(minimumTimestamp);
+				}
+
+				if (minimumFinalHeight == 0)
+					// We don't have any blocks since minimumTimestamp, let alone trades, so nothing to return
+					return response;
+
+				// height returned from repository is for block BEFORE timestamp
+				// but we want trades AFTER timestamp so bump height accordingly
+				minimumFinalHeight++;
+			}
+
+			List<CrossChainTradeLedgerEntry> crossChainTradeLedgerEntries = new ArrayList<>();
+
+			Map<ByteArray, Supplier<ACCT>> acctsByCodeHash = SupportedBlockchain.getAcctMap();
+
+			// collect ledger entries for each ACCT
+			for (Map.Entry<ByteArray, Supplier<ACCT>> acctInfo : acctsByCodeHash.entrySet()) {
+				byte[] codeHash = acctInfo.getKey().value;
+				ACCT acct = acctInfo.getValue().get();
+
+				// collect buys and sells
+				CrossChainUtils.collectLedgerEntries(publicKey, repository, minimumFinalHeight, crossChainTradeLedgerEntries, codeHash, acct, true);
+				CrossChainUtils.collectLedgerEntries(publicKey, repository, minimumFinalHeight, crossChainTradeLedgerEntries, codeHash, acct, false);
+			}
+
+			crossChainTradeLedgerEntries.sort((a, b) -> Longs.compare(a.getTradeTimestamp(), b.getTradeTimestamp()));
+
+			response.setStatus(HttpServletResponse.SC_OK);
+			response.setContentType("text/csv");
+			response.setHeader(
+				HttpHeaders.CONTENT_DISPOSITION,
+				ContentDisposition
+					.type("attachment")
+					.fileName(CrossChainUtils.createLedgerFileName(Crypto.toAddress(publicKey)))
+					.build()
+					.toString()
+			);
+
+			CrossChainUtils.writeToLedger( response.getWriter(), crossChainTradeLedgerEntries);
+
+			return response;
+		} catch (DataException e) {
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.REPOSITORY_ISSUE, e);
+		} catch (IOException e) {
+			response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+			return response;
+		}
+	}
+
 	@GET
 	@Path("/price/{blockchain}")
 	@Operation(

src/main/java/org/qortal/api/resource/CrossChainTradeBotResource.java

@@ -17,13 +17,16 @@ import org.qortal.api.ApiExceptionFactory;
 import org.qortal.api.Security;
 import org.qortal.api.model.crosschain.TradeBotCreateRequest;
 import org.qortal.api.model.crosschain.TradeBotRespondRequest;
+import org.qortal.api.model.crosschain.TradeBotRespondRequests;
 import org.qortal.asset.Asset;
 import org.qortal.controller.Controller;
 import org.qortal.controller.tradebot.AcctTradeBot;
 import org.qortal.controller.tradebot.TradeBot;
 import org.qortal.crosschain.ACCT;
 import org.qortal.crosschain.AcctMode;
+import org.qortal.crosschain.Bitcoiny;
 import org.qortal.crosschain.ForeignBlockchain;
+import org.qortal.crosschain.PirateChain;
 import org.qortal.crosschain.SupportedBlockchain;
 import org.qortal.crypto.Crypto;
 import org.qortal.data.at.ATData;
@@ -42,8 +45,10 @@ import javax.servlet.http.HttpServletRequest;
 import javax.ws.rs.*;
 import javax.ws.rs.core.Context;
 import javax.ws.rs.core.MediaType;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Objects;
+import java.util.Optional;
 import java.util.stream.Collectors;
 
 @Path("/crosschain/tradebot")
@@ -187,6 +192,39 @@ public class CrossChainTradeBotResource {
 	public String tradeBotResponder(@HeaderParam(Security.API_KEY_HEADER) String apiKey, TradeBotRespondRequest tradeBotRespondRequest) {
 		Security.checkApiCallAllowed(request);
 
+		return createTradeBotResponse(tradeBotRespondRequest);
+	}
+
+	@POST
+	@Path("/respondmultiple")
+	@Operation(
+			summary = "Respond to multiple trade offers. NOTE: WILL SPEND FUNDS!)",
+			description = "Start a new trade-bot entry to respond to chosen trade offers. Pirate Chain is not supported and will throw an invalid criteria error.",
+			requestBody = @RequestBody(
+					required = true,
+					content = @Content(
+							mediaType = MediaType.APPLICATION_JSON,
+							schema = @Schema(
+									implementation = TradeBotRespondRequests.class
+							)
+					)
+			),
+			responses = {
+					@ApiResponse(
+							content = @Content(mediaType = MediaType.TEXT_PLAIN, schema = @Schema(type = "string"))
+					)
+			}
+	)
+	@ApiErrors({ApiError.INVALID_PRIVATE_KEY, ApiError.INVALID_ADDRESS, ApiError.INVALID_CRITERIA, ApiError.FOREIGN_BLOCKCHAIN_BALANCE_ISSUE, ApiError.FOREIGN_BLOCKCHAIN_NETWORK_ISSUE, ApiError.REPOSITORY_ISSUE})
+	@SuppressWarnings("deprecation")
+	@SecurityRequirement(name = "apiKey")
+	public String tradeBotResponderMultiple(@HeaderParam(Security.API_KEY_HEADER) String apiKey, TradeBotRespondRequests tradeBotRespondRequest) {
+		Security.checkApiCallAllowed(request);
+
+		return createTradeBotResponseMultiple(tradeBotRespondRequest);
+	}
+
+	private String createTradeBotResponse(TradeBotRespondRequest tradeBotRespondRequest) {
 		final String atAddress = tradeBotRespondRequest.atAddress;
 
 		// We prefer foreignKey to deprecated xprv58
@@ -257,6 +295,99 @@ public class CrossChainTradeBotResource {
 		}
 	}
 
+	private String createTradeBotResponseMultiple(TradeBotRespondRequests respondRequests) {
+		try (final Repository repository = RepositoryManager.getRepository()) {
+
+			if (respondRequests.foreignKey == null)
+				throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_PRIVATE_KEY);
+
+			List<CrossChainTradeData> crossChainTradeDataList = new ArrayList<>(respondRequests.addresses.size());
+			Optional<ACCT> acct = Optional.empty();
+
+			for(String atAddress : respondRequests.addresses ) {
+
+				if (atAddress == null || !Crypto.isValidAtAddress(atAddress))
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
+
+				if (respondRequests.receivingAddress == null || !Crypto.isValidAddress(respondRequests.receivingAddress))
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
+
+				final Long minLatestBlockTimestamp = NTP.getTime() - (60 * 60 * 1000L);
+				if (!Controller.getInstance().isUpToDate(minLatestBlockTimestamp))
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.BLOCKCHAIN_NEEDS_SYNC);
+
+				// Extract data from cross-chain trading AT
+				ATData atData = fetchAtDataWithChecking(repository, atAddress);
+
+				// TradeBot uses AT's code hash to map to ACCT
+				ACCT acctUsingAtData = TradeBot.getInstance().getAcctUsingAtData(atData);
+				if (acctUsingAtData == null)
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
+				// if the optional is empty,
+				// then ensure the ACCT blockchain is a Bitcoiny blockchain, but not Pirate Chain and fill the optional
+				// Even though the Pirate Chain protocol does support multi send,
+				// the Pirate Chain API we are using does not support multi send
+				else if( acct.isEmpty() ) {
+					if( !(acctUsingAtData.getBlockchain() instanceof Bitcoiny) ||
+							acctUsingAtData.getBlockchain() instanceof PirateChain )
+						throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_CRITERIA);
+					acct = Optional.of(acctUsingAtData);
+				}
+				// if the optional is filled, then ensure it is equal to the AT in this iteration
+				else if( !acctUsingAtData.getCodeBytesHash().equals(acct.get().getCodeBytesHash()) )
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_CRITERIA);
+
+				if (!acctUsingAtData.getBlockchain().isValidWalletKey(respondRequests.foreignKey))
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_PRIVATE_KEY);
+
+				CrossChainTradeData crossChainTradeData = acctUsingAtData.populateTradeData(repository, atData);
+				if (crossChainTradeData == null)
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
+
+				if (crossChainTradeData.mode != AcctMode.OFFERING)
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_CRITERIA);
+
+				// Check if there is a buy or a cancel request in progress for this trade
+				List<Transaction.TransactionType> txTypes = List.of(Transaction.TransactionType.MESSAGE);
+				List<TransactionData> unconfirmed = repository.getTransactionRepository().getUnconfirmedTransactions(txTypes, null, 0, 0, false);
+				for (TransactionData transactionData : unconfirmed) {
+					MessageTransactionData messageTransactionData = (MessageTransactionData) transactionData;
+					if (Objects.equals(messageTransactionData.getRecipient(), atAddress)) {
+						// There is a pending request for this trade, so block this buy attempt to reduce the risk of refunds
+						throw ApiExceptionFactory.INSTANCE.createCustomException(request, ApiError.INVALID_CRITERIA, "Trade has an existing buy request or is pending cancellation.");
+					}
+				}
+
+				crossChainTradeDataList.add(crossChainTradeData);
+			}
+
+			AcctTradeBot.ResponseResult result
+					= TradeBot.getInstance().startResponseMultiple(
+						repository,
+						acct.get(),
+						crossChainTradeDataList,
+						respondRequests.receivingAddress,
+						respondRequests.foreignKey,
+						(Bitcoiny) acct.get().getBlockchain());
+
+			switch (result) {
+				case OK:
+					return "true";
+
+				case BALANCE_ISSUE:
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.FOREIGN_BLOCKCHAIN_BALANCE_ISSUE);
+
+				case NETWORK_ISSUE:
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.FOREIGN_BLOCKCHAIN_NETWORK_ISSUE);
+
+				default:
+					return "false";
+			}
+		} catch (DataException e) {
+			throw ApiExceptionFactory.INSTANCE.createCustomException(request, ApiError.REPOSITORY_ISSUE, e.getMessage());
+		}
+	}
+
 	@DELETE
 	@Operation(
 		summary = "Delete completed trade",

src/main/java/org/qortal/api/resource/CrossChainUtils.java

@@ -1,5 +1,6 @@
 package org.qortal.api.resource;
 
+import com.google.common.primitives.Bytes;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.bitcoinj.core.Address;
@@ -7,19 +8,38 @@ import org.bitcoinj.core.Coin;
 import org.bitcoinj.script.Script;
 import org.bitcoinj.script.ScriptBuilder;
 
+import org.bouncycastle.util.Strings;
+import org.json.simple.JSONObject;
+import org.qortal.api.model.CrossChainTradeLedgerEntry;
+import org.qortal.api.model.crosschain.BitcoinyTBDRequest;
 import org.qortal.crosschain.*;
 import org.qortal.data.at.ATData;
+import org.qortal.data.at.ATStateData;
 import org.qortal.data.crosschain.*;
 import org.qortal.repository.DataException;
 import org.qortal.repository.Repository;
+import org.qortal.utils.Amounts;
+import org.qortal.utils.BitTwiddling;
 
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.io.Writer;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.time.Instant;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
 import java.util.*;
 import java.util.stream.Collectors;
 
 
 public class CrossChainUtils {
+    public static final String QORT_CURRENCY_CODE = "QORT";
     private static final Logger LOGGER = LogManager.getLogger(CrossChainUtils.class);
     public static final String CORE_API_CALL = "Core API Call";
+    public static final String QORTAL_EXCHANGE_LABEL = "Qortal";
 
     public static ServerConfigurationInfo buildServerConfigurationInfo(Bitcoiny blockchain) {
 
@@ -545,4 +565,210 @@ public class CrossChainUtils {
                 server.getConnectionType().toString(),
                 false);
     }
+
+    /**
+     * Get Bitcoiny TBD (To Be Determined)
+     *
+     * @param bitcoinyTBDRequest the parameters for the Bitcoiny TBD
+     * @return the Bitcoiny TBD
+     * @throws DataException
+     */
+    public static BitcoinyTBD getBitcoinyTBD(BitcoinyTBDRequest bitcoinyTBDRequest) throws DataException {
+
+        try {
+            DeterminedNetworkParams networkParams = new DeterminedNetworkParams(bitcoinyTBDRequest);
+
+            BitcoinyTBD bitcoinyTBD
+                    = BitcoinyTBD.getInstance(bitcoinyTBDRequest.getCode())
+                        .orElse(BitcoinyTBD.buildInstance(
+                                bitcoinyTBDRequest,
+                                networkParams)
+                        );
+
+            return bitcoinyTBD;
+        } catch (Exception e) {
+            LOGGER.error(e.getMessage(), e);
+        }
+
+        return null;
+    }
+
+    /**
+     * Get Version Decimal
+     *
+     * @param jsonObject the JSON object with the version attribute
+     * @param attribute the attribute that hold the version value
+     * @return the version as a decimal number, discarding
+     * @throws NumberFormatException
+     */
+    public static double getVersionDecimal(JSONObject jsonObject, String attribute) throws NumberFormatException {
+        String versionString = (String) jsonObject.get(attribute);
+        return Double.parseDouble(reduceDelimeters(versionString, 1, '.'));
+    }
+
+    /**
+     * Reduce Delimeters
+     *
+     * @param value the raw string
+     * @param max the max number of the delimeter
+     * @param delimeter the delimeter
+     * @return the processed value with the max number of delimeters
+     */
+    public static String reduceDelimeters(String value, int max, char delimeter) {
+
+        if( max < 1 ) return value;
+
+        String[] splits = Strings.split(value, delimeter);
+
+        StringBuffer buffer = new StringBuffer(splits[0]);
+
+        int limit = Math.min(max + 1, splits.length);
+
+        for( int index = 1; index < limit; index++) {
+            buffer.append(delimeter);
+            buffer.append(splits[index]);
+        }
+
+        return buffer.toString();
+    }
+
+    /** Returns
+
+
+    /**
+     * Build Offer Message
+     *
+     * @param partnerBitcoinPKH
+     * @param hashOfSecretA
+     * @param lockTimeA
+     * @return  'offer' MESSAGE payload for trade partner to send to AT creator's trade address
+     */
+    public static byte[] buildOfferMessage(byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA) {
+        byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
+        return Bytes.concat(partnerBitcoinPKH, hashOfSecretA, lockTimeABytes);
+    }
+
+    /**
+     * Write To Ledger
+     *
+     * @param writer the writer to the ledger
+     * @param entries the entries to write to the ledger
+     *
+     * @throws IOException
+     */
+    public static void writeToLedger(Writer writer, List<CrossChainTradeLedgerEntry> entries) throws IOException {
+
+        BufferedWriter bufferedWriter = new BufferedWriter(writer);
+
+        StringJoiner header = new StringJoiner(",");
+        header.add("Market");
+        header.add("Currency");
+        header.add("Quantity");
+        header.add("Commission Paid");
+        header.add("Commission Currency");
+        header.add("Total Price");
+        header.add("Date Time");
+        header.add("Exchange");
+
+        bufferedWriter.append(header.toString());
+
+        DateFormat dateFormatter = new SimpleDateFormat("yyyyMMdd HH:mm");
+        dateFormatter.setTimeZone(TimeZone.getTimeZone("UTC"));
+
+        for( CrossChainTradeLedgerEntry entry : entries ) {
+            StringJoiner joiner = new StringJoiner(",");
+
+            joiner.add(entry.getMarket());
+            joiner.add(entry.getCurrency());
+            joiner.add(String.valueOf(Amounts.prettyAmount(entry.getQuantity())));
+            joiner.add(String.valueOf(Amounts.prettyAmount(entry.getFeeAmount())));
+            joiner.add(entry.getFeeCurrency());
+            joiner.add(String.valueOf(Amounts.prettyAmount(entry.getTotalPrice())));
+            joiner.add(dateFormatter.format(new Date(entry.getTradeTimestamp())));
+            joiner.add(QORTAL_EXCHANGE_LABEL);
+
+            bufferedWriter.newLine();
+            bufferedWriter.append(joiner.toString());
+        }
+
+        bufferedWriter.newLine();
+        bufferedWriter.flush();
+    }
+
+    /**
+     * Create Ledger File Name
+     *
+     * Create a file name the includes timestamp and address.
+     *
+     * @param address the address
+     *
+     * @return the file name created
+     */
+    public static String createLedgerFileName(String address) {
+        DateFormat dateFormatter = new SimpleDateFormat("yyyyMMddHHmmss");
+        String fileName = "ledger-" + address + "-" + dateFormatter.format(new Date());
+        return fileName;
+    }
+
+    /**
+     * Collect Ledger Entries
+     *
+     * @param publicKey the public key for the ledger entries, buy and sell
+     * @param repository the data repository
+     * @param minimumFinalHeight the minimum block height for entries to be collected
+     * @param entries the ledger entries to add to
+     * @param codeHash code hash for the entry blockchain
+     * @param acct the ACCT for the entry blockchain
+     * @param isBuy true collecting entries for a buy, otherwise false
+     *
+     * @throws DataException
+     */
+    public static void collectLedgerEntries(
+            byte[] publicKey,
+            Repository repository,
+            Integer minimumFinalHeight,
+            List<CrossChainTradeLedgerEntry> entries,
+            byte[] codeHash,
+            ACCT acct,
+            boolean isBuy) throws DataException {
+
+        // get all the final AT states for the code hash (foreign coin)
+        List<ATStateData> atStates
+            = repository.getATRepository().getMatchingFinalATStates(
+                codeHash,
+                isBuy ? publicKey : null,
+                !isBuy ? publicKey : null,
+                Boolean.TRUE, acct.getModeByteOffset(),
+                (long) AcctMode.REDEEMED.value,
+                minimumFinalHeight,
+                null, null, false
+        );
+
+        String foreignBlockchainCurrencyCode = acct.getBlockchain().getCurrencyCode();
+
+        // for each trade, build ledger entry, collect ledger entry
+        for (ATStateData atState : atStates) {
+            CrossChainTradeData crossChainTradeData = acct.populateTradeData(repository, atState);
+
+            // We also need block timestamp for use as trade timestamp
+            long localTimestamp = repository.getBlockRepository().getTimestampFromHeight(atState.getHeight());
+
+            if (localTimestamp == 0) {
+                // Try the archive
+                localTimestamp = repository.getBlockArchiveRepository().getTimestampFromHeight(atState.getHeight());
+            }
+
+            CrossChainTradeLedgerEntry ledgerEntry
+                = new CrossChainTradeLedgerEntry(
+                    isBuy ? QORT_CURRENCY_CODE : foreignBlockchainCurrencyCode,
+                    isBuy ? foreignBlockchainCurrencyCode : QORT_CURRENCY_CODE,
+                    isBuy ? crossChainTradeData.qortAmount : crossChainTradeData.expectedForeignAmount,
+                    0,
+                    foreignBlockchainCurrencyCode,
+                    isBuy ? crossChainTradeData.expectedForeignAmount : crossChainTradeData.qortAmount,
+                    localTimestamp);
+
+            entries.add(ledgerEntry);
+        }
+    }
 }

src/main/java/org/qortal/api/restricted/resource/AdminResource.java

@@ -32,13 +32,16 @@ import org.qortal.controller.Synchronizer.SynchronizationResult;
 import org.qortal.controller.repository.BlockArchiveRebuilder;
 import org.qortal.data.account.MintingAccountData;
 import org.qortal.data.account.RewardShareData;
+import org.qortal.data.system.DbConnectionInfo;
 import org.qortal.network.Network;
 import org.qortal.network.Peer;
 import org.qortal.network.PeerAddress;
+import org.qortal.repository.ReindexManager;
 import org.qortal.repository.DataException;
 import org.qortal.repository.Repository;
 import org.qortal.repository.RepositoryManager;
 import org.qortal.settings.Settings;
+import org.qortal.data.system.SystemInfo;
 import org.qortal.utils.Base58;
 import org.qortal.utils.NTP;
 
@@ -51,6 +54,7 @@ import java.net.InetSocketAddress;
 import java.net.UnknownHostException;
 import java.nio.file.Files;
 import java.nio.file.Paths;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
@@ -458,7 +462,7 @@ public class AdminResource {
 
 			// Qortal: check reward-share's minting account is still allowed to mint
 			Account rewardShareMintingAccount = new Account(repository, rewardShareData.getMinter());
-			if (!rewardShareMintingAccount.canMint())
+			if (!rewardShareMintingAccount.canMint(false))
 				throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.CANNOT_MINT);
 
 			MintingAccountData mintingAccountData = new MintingAccountData(mintingAccount.getPrivateKey(), mintingAccount.getPublicKey());
@@ -894,6 +898,50 @@ public class AdminResource {
 		}
 	}
 
+	@POST
+	@Path("/repository/reindex")
+	@Operation(
+			summary = "Reindex repository",
+			description = "Rebuilds all transactions and balances from archived blocks. Warning: takes around 1 week, and the core will not function normally during this time. If 'false' is returned, the database may be left in an inconsistent state, requiring another reindex or a bootstrap to correct it.",
+			responses = {
+					@ApiResponse(
+							description = "\"true\"",
+							content = @Content(mediaType = MediaType.TEXT_PLAIN, schema = @Schema(type = "string"))
+					)
+			}
+	)
+	@ApiErrors({ApiError.REPOSITORY_ISSUE, ApiError.BLOCKCHAIN_NEEDS_SYNC})
+	@SecurityRequirement(name = "apiKey")
+	public String reindex(@HeaderParam(Security.API_KEY_HEADER) String apiKey) {
+		Security.checkApiCallAllowed(request);
+
+		if (Synchronizer.getInstance().isSynchronizing())
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.BLOCKCHAIN_NEEDS_SYNC);
+
+		try {
+			ReentrantLock blockchainLock = Controller.getInstance().getBlockchainLock();
+
+			blockchainLock.lockInterruptibly();
+
+			try {
+				ReindexManager reindexManager = new ReindexManager();
+				reindexManager.reindex();
+				return "true";
+
+			} catch (DataException e) {
+				LOGGER.info("DataException when reindexing: {}", e.getMessage());
+
+			} finally {
+				blockchainLock.unlock();
+			}
+		} catch (InterruptedException e) {
+			// We couldn't lock blockchain to perform reindex
+			return "false";
+		}
+
+		return "false";
+	}
+
 	@DELETE
 	@Path("/repository")
 	@Operation(
@@ -966,8 +1014,6 @@ public class AdminResource {
 		}
 	}
 
-
-
 	@POST
 	@Path("/apikey/generate")
 	@Operation(
@@ -1021,4 +1067,50 @@ public class AdminResource {
 		return "true";
 	}
 
-}
+	@GET
+	@Path("/systeminfo")
+	@Operation(
+			summary = "System Information",
+			description = "System memory usage and available processors.",
+			responses = {
+					@ApiResponse(
+							description = "memory usage and available processors",
+							content = @Content(mediaType = MediaType.APPLICATION_JSON, schema = @Schema(implementation = SystemInfo.class))
+					)
+			}
+	)
+	@ApiErrors({ApiError.REPOSITORY_ISSUE})
+	public SystemInfo getSystemInformation() {
+
+		SystemInfo info
+			= new SystemInfo(
+				Runtime.getRuntime().freeMemory(),
+				Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory(),
+				Runtime.getRuntime().totalMemory(),
+				Runtime.getRuntime().maxMemory(),
+				Runtime.getRuntime().availableProcessors());
+
+		return info;
+	}
+
+	@GET
+	@Path("/dbstates")
+	@Operation(
+			summary = "Get DB States",
+			description = "Get DB States",
+			responses = {
+					@ApiResponse(
+							content = @Content(mediaType = MediaType.APPLICATION_JSON, array = @ArraySchema(schema = @Schema(implementation = DbConnectionInfo.class)))
+					)
+			}
+	)
+	public List<DbConnectionInfo> getDbConnectionsStates() {
+
+		try {
+			return Controller.REPOSITORY_FACTORY.getDbConnectionsStates();
+		} catch (Exception e) {
+			LOGGER.error(e.getMessage(), e);
+			return new ArrayList<>(0);
+		}
+	}
+}

src/main/java/org/qortal/api/websocket/ActiveChatsWebSocket.java

@@ -77,7 +77,9 @@ public class ActiveChatsWebSocket extends ApiWebSocket {
 		}
 
 		try (final Repository repository = RepositoryManager.getRepository()) {
-			ActiveChats activeChats = repository.getChatRepository().getActiveChats(ourAddress, getTargetEncoding(session));
+			Boolean hasChatReference = getHasChatReference(session);
+
+			ActiveChats activeChats = repository.getChatRepository().getActiveChats(ourAddress, getTargetEncoding(session), hasChatReference);
 
 			StringWriter stringWriter = new StringWriter();
 
@@ -103,4 +105,20 @@ public class ActiveChatsWebSocket extends ApiWebSocket {
 		return Encoding.valueOf(encoding);
 	}
 
+	private Boolean getHasChatReference(Session session) {
+		Map<String, List<String>> queryParams = session.getUpgradeRequest().getParameterMap();
+		List<String> hasChatReferenceList = queryParams.get("haschatreference");
+	
+		// Return null if not specified
+		if (hasChatReferenceList != null && hasChatReferenceList.size() == 1) {
+			String value = hasChatReferenceList.get(0).toLowerCase();
+			if (value.equals("true")) {
+				return true;
+			} else if (value.equals("false")) {
+				return false;
+			}
+		}
+		return null; // Ignored if not present
+	}
+
 }

src/main/java/org/qortal/api/websocket/DataMonitorSocket.java

@@ -0,0 +1,102 @@
+package org.qortal.api.websocket;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.eclipse.jetty.websocket.api.Session;
+import org.eclipse.jetty.websocket.api.WebSocketException;
+import org.eclipse.jetty.websocket.api.annotations.OnWebSocketClose;
+import org.eclipse.jetty.websocket.api.annotations.OnWebSocketConnect;
+import org.eclipse.jetty.websocket.api.annotations.OnWebSocketError;
+import org.eclipse.jetty.websocket.api.annotations.OnWebSocketMessage;
+import org.eclipse.jetty.websocket.api.annotations.WebSocket;
+import org.eclipse.jetty.websocket.servlet.WebSocketServletFactory;
+import org.qortal.api.ApiError;
+import org.qortal.controller.Controller;
+import org.qortal.data.arbitrary.DataMonitorInfo;
+import org.qortal.event.DataMonitorEvent;
+import org.qortal.event.Event;
+import org.qortal.event.EventBus;
+import org.qortal.event.Listener;
+import org.qortal.repository.DataException;
+import org.qortal.repository.Repository;
+import org.qortal.repository.RepositoryManager;
+import org.qortal.utils.Base58;
+
+import java.io.IOException;
+import java.io.StringWriter;
+import java.util.List;
+
+@WebSocket
+@SuppressWarnings("serial")
+public class DataMonitorSocket extends ApiWebSocket implements Listener {
+
+	private static final Logger LOGGER = LogManager.getLogger(DataMonitorSocket.class);
+
+	@Override
+	public void configure(WebSocketServletFactory factory) {
+		LOGGER.info("configure");
+
+		factory.register(DataMonitorSocket.class);
+
+		EventBus.INSTANCE.addListener(this);
+	}
+
+	@Override
+	public void listen(Event event) {
+		if (!(event instanceof DataMonitorEvent))
+			return;
+
+		DataMonitorEvent dataMonitorEvent = (DataMonitorEvent) event;
+
+		for (Session session : getSessions())
+			sendDataEventSummary(session, buildInfo(dataMonitorEvent));
+	}
+
+	private DataMonitorInfo buildInfo(DataMonitorEvent dataMonitorEvent) {
+
+		return new DataMonitorInfo(
+			dataMonitorEvent.getTimestamp(),
+			dataMonitorEvent.getIdentifier(),
+			dataMonitorEvent.getName(),
+			dataMonitorEvent.getService(),
+			dataMonitorEvent.getDescription(),
+			dataMonitorEvent.getTransactionTimestamp(),
+			dataMonitorEvent.getLatestPutTimestamp()
+		);
+	}
+
+	@OnWebSocketConnect
+	@Override
+	public void onWebSocketConnect(Session session) {
+		super.onWebSocketConnect(session);
+	}
+
+	@OnWebSocketClose
+	@Override
+	public void onWebSocketClose(Session session, int statusCode, String reason) {
+		super.onWebSocketClose(session, statusCode, reason);
+	}
+
+	@OnWebSocketError
+	public void onWebSocketError(Session session, Throwable throwable) {
+		/* We ignore errors for now, but method here to silence log spam */
+	}
+
+	@OnWebSocketMessage
+	public void onWebSocketMessage(Session session, String message) {
+		LOGGER.info("onWebSocketMessage: message = " + message);
+	}
+
+	private void sendDataEventSummary(Session session, DataMonitorInfo dataMonitorInfo) {
+		StringWriter stringWriter = new StringWriter();
+
+		try {
+			marshall(stringWriter, dataMonitorInfo);
+
+			session.getRemote().sendStringByFuture(stringWriter.toString());
+		} catch (IOException | WebSocketException e) {
+			// No output this time
+		}
+	}
+
+}

src/main/java/org/qortal/api/websocket/TradeOffersWebSocket.java

@@ -98,7 +98,7 @@ public class TradeOffersWebSocket extends ApiWebSocket implements Listener {
 						byte[] codeHash = acctInfo.getKey().value;
 						ACCT acct = acctInfo.getValue().get();
 
-						List<ATStateData> atStates = repository.getATRepository().getMatchingFinalATStates(codeHash,
+						List<ATStateData> atStates = repository.getATRepository().getMatchingFinalATStates(codeHash, null, null,
 								isFinished, dataByteOffset, expectedValue, minimumFinalHeight,
 								null, null, null);
 
@@ -259,7 +259,7 @@ public class TradeOffersWebSocket extends ApiWebSocket implements Listener {
 				ACCT acct = acctInfo.getValue().get();
 
 				Integer dataByteOffset = acct.getModeByteOffset();
-				List<ATStateData> initialAtStates = repository.getATRepository().getMatchingFinalATStates(codeHash,
+				List<ATStateData> initialAtStates = repository.getATRepository().getMatchingFinalATStates(codeHash, null, null,
 					isFinished, dataByteOffset, expectedValue, minimumFinalHeight,
 					null, null, null);
 
@@ -298,7 +298,7 @@ public class TradeOffersWebSocket extends ApiWebSocket implements Listener {
 				byte[] codeHash = acctInfo.getKey().value;
 				ACCT acct = acctInfo.getValue().get();
 
-				List<ATStateData> historicAtStates = repository.getATRepository().getMatchingFinalATStates(codeHash,
+				List<ATStateData> historicAtStates = repository.getATRepository().getMatchingFinalATStates(codeHash, null, null,
 					isFinished, dataByteOffset, expectedValue, minimumFinalHeight,
 					null, null, null);
 

src/main/java/org/qortal/arbitrary/ArbitraryDataReader.java

@@ -439,7 +439,15 @@ public class ArbitraryDataReader {
             // Ensure the complete hash matches the joined chunks
             if (!Arrays.equals(arbitraryDataFile.digest(), transactionData.getData())) {
                 // Delete the invalid file
-                arbitraryDataFile.delete();
+                LOGGER.info("Deleting invalid file: path = " + arbitraryDataFile.getFilePath());
+
+                if( arbitraryDataFile.delete() ) {
+                    LOGGER.info("Deleted invalid file successfully: path = " + arbitraryDataFile.getFilePath());
+                }
+                else {
+                    LOGGER.warn("Could not delete invalid file: path = " + arbitraryDataFile.getFilePath());
+                }
+
                 throw new DataException("Unable to validate complete file hash");
             }
         }

src/main/java/org/qortal/arbitrary/ArbitraryDataRenderer.java

@@ -168,7 +168,7 @@ public class ArbitraryDataRenderer {
                 byte[] data = Files.readAllBytes(filePath); // TODO: limit file size that can be read into memory
                 HTMLParser htmlParser = new HTMLParser(resourceId, inPath, prefix, includeResourceIdInPrefix, data, qdnContext, service, identifier, theme, usingCustomRouting);
                 htmlParser.addAdditionalHeaderTags();
-                response.addHeader("Content-Security-Policy", "default-src 'self' 'unsafe-inline' 'unsafe-eval'; media-src 'self' data: blob:; img-src 'self' data: blob:;");
+                response.addHeader("Content-Security-Policy", "default-src 'self' 'unsafe-inline' 'unsafe-eval'; font-src 'self' data:; media-src 'self' data: blob:; img-src 'self' data: blob:; connect-src 'self' wss:;");
                 response.setContentType(context.getMimeType(filename));
                 response.setContentLength(htmlParser.getData().length);
                 response.getOutputStream().write(htmlParser.getData());

src/main/java/org/qortal/arbitrary/misc/Service.java

@@ -167,7 +167,7 @@ public enum Service {
     COMMENT(1800, true, 500*1024L, true, false, null),
     CHAIN_COMMENT(1810, true, 239L, true, false, null),
     MAIL(1900, true, 1024*1024L, true, false, null),
-    MAIL_PRIVATE(1901, true, 1024*1024L, true, true, null),
+    MAIL_PRIVATE(1901, true, 5*1024*1024L, true, true, null),
     MESSAGE(1910, true, 1024*1024L, true, false, null),
     MESSAGE_PRIVATE(1911, true, 1024*1024L, true, true, null);
 

src/main/java/org/qortal/block/Block.java

@@ -23,12 +23,12 @@ import org.qortal.data.at.ATStateData;
 import org.qortal.data.block.BlockData;
 import org.qortal.data.block.BlockSummaryData;
 import org.qortal.data.block.BlockTransactionData;
+import org.qortal.data.group.GroupAdminData;
 import org.qortal.data.network.OnlineAccountData;
 import org.qortal.data.transaction.TransactionData;
-import org.qortal.repository.ATRepository;
-import org.qortal.repository.DataException;
-import org.qortal.repository.Repository;
-import org.qortal.repository.TransactionRepository;
+import org.qortal.group.Group;
+import org.qortal.repository.*;
+import org.qortal.settings.Settings;
 import org.qortal.transaction.AtTransaction;
 import org.qortal.transaction.Transaction;
 import org.qortal.transaction.Transaction.ApprovalStatus;
@@ -39,6 +39,7 @@ import org.qortal.transform.block.BlockTransformer;
 import org.qortal.transform.transaction.TransactionTransformer;
 import org.qortal.utils.Amounts;
 import org.qortal.utils.Base58;
+import org.qortal.utils.Groups;
 import org.qortal.utils.NTP;
 
 import java.io.ByteArrayOutputStream;
@@ -104,6 +105,7 @@ public class Block {
 	protected Repository repository;
 	protected BlockData blockData;
 	protected PublicKeyAccount minter;
+	boolean isTestnet = Settings.getInstance().isTestNet();
 
 	// Other properties
 	private static final Logger LOGGER = LogManager.getLogger(Block.class);
@@ -142,11 +144,14 @@ public class Block {
 		private final Account mintingAccount;
 		private final AccountData mintingAccountData;
 		private final boolean isMinterFounder;
+		private final boolean isMinterMember;
 
 		private final Account recipientAccount;
 		private final AccountData recipientAccountData;
 
-		ExpandedAccount(Repository repository, RewardShareData rewardShareData) throws DataException {
+		final BlockChain blockChain = BlockChain.getInstance();
+
+		ExpandedAccount(Repository repository, RewardShareData rewardShareData, int blockHeight) throws DataException {
 			this.rewardShareData = rewardShareData;
 			this.sharePercent = this.rewardShareData.getSharePercent();
 
@@ -155,6 +160,12 @@ public class Block {
 			this.isMinterFounder = Account.isFounder(mintingAccountData.getFlags());
 
 			this.isRecipientAlsoMinter = this.rewardShareData.getRecipient().equals(this.mintingAccount.getAddress());
+			this.isMinterMember
+				= Groups.memberExistsInAnyGroup(
+					repository.getGroupRepository(),
+					Groups.getGroupIdsToMint(BlockChain.getInstance(), blockHeight),
+					this.mintingAccount.getAddress()
+			);
 
 			if (this.isRecipientAlsoMinter) {
 				// Self-share: minter is also recipient
@@ -167,6 +178,19 @@ public class Block {
 			}
 		}
 
+		/**
+		 * Get Effective Minting Level
+		 *
+		 * @return the effective minting level, if a data exception is thrown, it catches the exception and returns a zero
+		 */
+		public int getEffectiveMintingLevel() {
+			try {
+				return this.mintingAccount.getEffectiveMintingLevel();
+			} catch (DataException e) {
+				return 0;
+			}
+		}
+
 		public Account getMintingAccount() {
 			return this.mintingAccount;
 		}
@@ -179,19 +203,23 @@ public class Block {
 		 * <p>
 		 * This is a method, not a final variable, because account's level can change between construction and call,
 		 * e.g. during Block.process() where account levels are bumped right before Block.distributeBlockReward().
-		 * 
+		 *
 		 *  @return account-level share "bin" from blockchain config, or null if founder / none found
 		 */
 		public AccountLevelShareBin getShareBin(int blockHeight) {
-			if (this.isMinterFounder)
+			if (this.isMinterFounder && blockHeight < BlockChain.getInstance().getAdminsReplaceFoundersHeight())
 				return null;
 
 			final int accountLevel = this.mintingAccountData.getLevel();
 			if (accountLevel <= 0)
 				return null; // level 0 isn't included in any share bins
 
+			if (blockHeight >= blockChain.getFixBatchRewardHeight()) {
+				if (!this.isMinterMember)
+					return null; // not member of minter group isn't included in any share bins
+			}
+
 			// Select the correct set of share bins based on block height
-			final BlockChain blockChain = BlockChain.getInstance();
 			final AccountLevelShareBin[] shareBinsByLevel = (blockHeight >= blockChain.getSharesByLevelV2Height()) ?
 					blockChain.getShareBinsByAccountLevelV2() : blockChain.getShareBinsByAccountLevelV1();
 
@@ -260,7 +288,7 @@ public class Block {
 	 * Constructs new Block without loading transactions and AT states.
 	 * <p>
 	 * Transactions and AT states are loaded on first call to getTransactions() or getATStates() respectively.
-	 * 
+	 *
 	 * @param repository
 	 * @param blockData
 	 */
@@ -331,7 +359,7 @@ public class Block {
 
 	/**
 	 * Constructs new Block with empty transaction list, using passed minter account.
-	 * 
+	 *
 	 * @param repository
 	 * @param blockData
 	 * @param minter
@@ -349,7 +377,7 @@ public class Block {
 	 * This constructor typically used when minting a new block.
 	 * <p>
 	 * Note that CIYAM ATs will be executed and AT-Transactions prepended to this block, along with AT state data and fees.
-	 * 
+	 *
 	 * @param repository
 	 * @param parentBlockData
 	 * @param minter
@@ -375,7 +403,7 @@ public class Block {
 		byte[] encodedOnlineAccounts = new byte[0];
 		int onlineAccountsCount = 0;
 		byte[] onlineAccountsSignatures = null;
-		
+
 		if (isBatchRewardDistributionBlock(height)) {
 			// Batch reward distribution block - copy online accounts from recent block with highest online accounts count
 
@@ -396,7 +424,9 @@ public class Block {
 			onlineAccounts.removeIf(a -> a.getNonce() == null || a.getNonce() < 0);
 
 			// After feature trigger, remove any online accounts that are level 0
-			if (height >= BlockChain.getInstance().getOnlineAccountMinterLevelValidationHeight()) {
+			// but only if they are before the ignore level feature trigger
+			if (height < BlockChain.getInstance().getIgnoreLevelForRewardShareHeight() &&
+					height >= BlockChain.getInstance().getOnlineAccountMinterLevelValidationHeight()) {
 				onlineAccounts.removeIf(a -> {
 					try {
 						return Account.getRewardShareEffectiveMintingLevel(repository, a.getPublicKey()) == 0;
@@ -407,6 +437,21 @@ public class Block {
 				});
 			}
 
+			// After feature trigger, remove any online accounts that are not minter group member
+			if (height >= BlockChain.getInstance().getGroupMemberCheckHeight()) {
+				onlineAccounts.removeIf(a -> {
+					try {
+						List<Integer> groupIdsToMint = Groups.getGroupIdsToMint(BlockChain.getInstance(), height);
+						String address = Account.getRewardShareMintingAddress(repository, a.getPublicKey());
+						boolean isMinterGroupMember = Groups.memberExistsInAnyGroup(repository.getGroupRepository(), groupIdsToMint, address);
+						return !isMinterGroupMember;
+					} catch (DataException e) {
+						// Something went wrong, so remove the account
+						return true;
+					}
+				});
+			}
+
 			if (onlineAccounts.isEmpty()) {
 				LOGGER.debug("No online accounts - not even our own?");
 				return null;
@@ -510,7 +555,7 @@ public class Block {
 	 * Mints new block using this block as template, but with different minting account.
 	 * <p>
 	 * NOTE: uses the same transactions list, AT states, etc.
-	 * 
+	 *
 	 * @param minter
 	 * @return
 	 * @throws DataException
@@ -596,7 +641,7 @@ public class Block {
 
 	/**
 	 * Return composite block signature (minterSignature + transactionsSignature).
-	 * 
+	 *
 	 * @return byte[], or null if either component signature is null.
 	 */
 	public byte[] getSignature() {
@@ -611,7 +656,7 @@ public class Block {
 	 * <p>
 	 * We're starting with version 4 as a nod to being newer than successor Qora,
 	 * whose latest block version was 3.
-	 * 
+	 *
 	 * @return 1, 2, 3 or 4
 	 */
 	public int getNextBlockVersion() {
@@ -625,7 +670,7 @@ public class Block {
 	 * Return block's transactions.
 	 * <p>
 	 * If the block was loaded from repository then it's possible this method will call the repository to fetch the transactions if not done already.
-	 * 
+	 *
 	 * @return
 	 * @throws DataException
 	 */
@@ -659,7 +704,7 @@ public class Block {
 	 * If the block was loaded from repository then it's possible this method will call the repository to fetch the AT states if not done already.
 	 * <p>
 	 * <b>Note:</b> AT states fetched from repository only contain summary info, not actual data like serialized state data or AT creation timestamps!
-	 * 
+	 *
 	 * @return
 	 * @throws DataException
 	 */
@@ -695,7 +740,7 @@ public class Block {
 	 * <p>
 	 * Typically called as part of Block.process() or Block.orphan()
 	 * so ideally after any calls to Block.isValid().
-	 * 
+	 *
 	 * @throws DataException
 	 */
 	public List<ExpandedAccount> getExpandedAccounts() throws DataException {
@@ -713,10 +758,12 @@ public class Block {
 
 		List<ExpandedAccount> expandedAccounts = new ArrayList<>();
 
-		for (RewardShareData rewardShare : this.cachedOnlineRewardShares)
-			expandedAccounts.add(new ExpandedAccount(repository, rewardShare));
+		for (RewardShareData rewardShare : this.cachedOnlineRewardShares) {
+			expandedAccounts.add(new ExpandedAccount(repository, rewardShare, this.blockData.getHeight()));
+		}
 
 		this.cachedExpandedAccounts = expandedAccounts;
+		LOGGER.trace(() -> String.format("Online reward-shares after expanded accounts %s", this.cachedOnlineRewardShares));
 
 		return this.cachedExpandedAccounts;
 	}
@@ -725,7 +772,7 @@ public class Block {
 
 	/**
 	 * Load parent block's data from repository via this block's reference.
-	 * 
+	 *
 	 * @return parent's BlockData, or null if no parent found
 	 * @throws DataException
 	 */
@@ -739,7 +786,7 @@ public class Block {
 
 	/**
 	 * Load child block's data from repository via this block's signature.
-	 * 
+	 *
 	 * @return child's BlockData, or null if no parent found
 	 * @throws DataException
 	 */
@@ -759,7 +806,7 @@ public class Block {
 	 * Used when constructing a new block during minting.
 	 * <p>
 	 * Requires block's {@code minter} being a {@code PrivateKeyAccount} so block's transactions signature can be recalculated.
-	 * 
+	 *
 	 * @param transactionData
 	 * @return true if transaction successfully added to block, false otherwise
 	 * @throws IllegalStateException
@@ -812,7 +859,7 @@ public class Block {
 	 * Used when constructing a new block during minting.
 	 * <p>
 	 * Requires block's {@code minter} being a {@code PrivateKeyAccount} so block's transactions signature can be recalculated.
-	 * 
+	 *
 	 * @param transactionData
 	 * @throws IllegalStateException
 	 *             if block's {@code minter} is not a {@code PrivateKeyAccount}.
@@ -857,7 +904,7 @@ public class Block {
 	 * previous block's minter signature + minter's public key + (encoded) online-accounts data
 	 * <p>
 	 * (Previous block's minter signature is extracted from this block's reference).
-	 * 
+	 *
 	 * @throws IllegalStateException
 	 *             if block's {@code minter} is not a {@code PrivateKeyAccount}.
 	 * @throws RuntimeException
@@ -874,7 +921,7 @@ public class Block {
 	 * Recalculate block's transactions signature.
 	 * <p>
 	 * Requires block's {@code minter} being a {@code PrivateKeyAccount}.
-	 * 
+	 *
 	 * @throws IllegalStateException
 	 *             if block's {@code minter} is not a {@code PrivateKeyAccount}.
 	 * @throws RuntimeException
@@ -996,7 +1043,7 @@ public class Block {
 	 * Recalculate block's minter and transactions signatures, thus giving block full signature.
 	 * <p>
 	 * Note: Block instance must have been constructed with a <tt>PrivateKeyAccount</tt> minter or this call will throw an <tt>IllegalStateException</tt>.
-	 * 
+	 *
 	 * @throws IllegalStateException
 	 *             if block's {@code minter} is not a {@code PrivateKeyAccount}.
 	 */
@@ -1009,7 +1056,7 @@ public class Block {
 
 	/**
 	 * Returns whether this block's signatures are valid.
-	 * 
+	 *
 	 * @return true if both minter and transaction signatures are valid, false otherwise
 	 */
 	public boolean isSignatureValid() {
@@ -1033,7 +1080,7 @@ public class Block {
 	 * <p>
 	 * Used by BlockMinter to check whether it's time to mint a new block,
 	 * and also used by Block.isValid for checks (if not a testchain).
-	 * 
+	 *
 	 * @return ValidationResult.OK if timestamp valid, or some other ValidationResult otherwise.
 	 * @throws DataException
 	 */
@@ -1122,14 +1169,32 @@ public class Block {
 		if (onlineRewardShares == null)
 			return ValidationResult.ONLINE_ACCOUNT_UNKNOWN;
 
-		// After feature trigger, require all online account minters to be greater than level 0
-		if (this.getBlockData().getHeight() >= BlockChain.getInstance().getOnlineAccountMinterLevelValidationHeight()) {
-			List<ExpandedAccount> expandedAccounts = this.getExpandedAccounts();
+		// After feature trigger, require all online account minters to be greater than level 0,
+		// but only if it is before the feature trigger where we ignore level again
+		if (this.blockData.getHeight() < BlockChain.getInstance().getIgnoreLevelForRewardShareHeight() &&
+			this.getBlockData().getHeight() >= BlockChain.getInstance().getOnlineAccountMinterLevelValidationHeight()) {
+			List<ExpandedAccount> expandedAccounts
+					= this.getExpandedAccounts().stream()
+					.filter(expandedAccount -> expandedAccount.isMinterMember)
+					.collect(Collectors.toList());
+
 			for (ExpandedAccount account : expandedAccounts) {
 				if (account.getMintingAccount().getEffectiveMintingLevel() == 0)
 					return ValidationResult.ONLINE_ACCOUNTS_INVALID;
+
+				if (this.getBlockData().getHeight() >= BlockChain.getInstance().getFixBatchRewardHeight()) {
+					if (!account.isMinterMember)
+						return ValidationResult.ONLINE_ACCOUNTS_INVALID;
+				}
 			}
 		}
+		else if (this.blockData.getHeight() >= BlockChain.getInstance().getIgnoreLevelForRewardShareHeight()){
+			Optional<ExpandedAccount> anyInvalidAccount
+					= this.getExpandedAccounts().stream()
+					.filter(account -> !account.isMinterMember)
+					.findAny();
+			if( anyInvalidAccount.isPresent() ) return ValidationResult.ONLINE_ACCOUNTS_INVALID;
+		}
 
 		// If block is past a certain age then we simply assume the signatures were correct
 		long signatureRequirementThreshold = NTP.getTime() - BlockChain.getInstance().getOnlineAccountSignaturesMinLifetime();
@@ -1213,7 +1278,7 @@ public class Block {
 	 * <p>
 	 * Checks block's transactions by testing their validity then processing them.<br>
 	 * Hence uses a repository savepoint during execution.
-	 * 
+	 *
 	 * @return ValidationResult.OK if block is valid, or some other ValidationResult otherwise.
 	 * @throws DataException
 	 */
@@ -1256,6 +1321,7 @@ public class Block {
 
 		// Online Accounts
 		ValidationResult onlineAccountsResult = this.areOnlineAccountsValid();
+		LOGGER.trace("Accounts valid = {}", onlineAccountsResult);
 		if (onlineAccountsResult != ValidationResult.OK)
 			return onlineAccountsResult;
 
@@ -1281,13 +1347,20 @@ public class Block {
 			// Create repository savepoint here so we can rollback to it after testing transactions
 			repository.setSavepoint();
 
-			if (this.blockData.getHeight() == 212937) {
-				// Apply fix for block 212937 but fix will be rolled back before we exit method
-				Block212937.processFix(this);
-			}
-			else if (InvalidNameRegistrationBlocks.isAffectedBlock(this.blockData.getHeight())) {
-				// Apply fix for affected name registration blocks, but fix will be rolled back before we exit method
-				InvalidNameRegistrationBlocks.processFix(this);
+			if (!isTestnet) {
+				if (this.blockData.getHeight() == 212937) {
+					// Apply fix for block 212937 but fix will be rolled back before we exit method
+					Block212937.processFix(this);
+				} else if (this.blockData.getHeight() == 1333492) {
+					// Apply fix for block 1333492 but fix will be rolled back before we exit method
+					Block1333492.processFix(this);
+				} else if (InvalidNameRegistrationBlocks.isAffectedBlock(this.blockData.getHeight())) {
+					// Apply fix for affected name registration blocks, but fix will be rolled back before we exit method
+					InvalidNameRegistrationBlocks.processFix(this);
+				} else if (InvalidBalanceBlocks.isAffectedBlock(this.blockData.getHeight())) {
+					// Apply fix for affected balance blocks, but fix will be rolled back before we exit method
+					InvalidBalanceBlocks.processFix(this);
+				}
 			}
 
 			for (Transaction transaction : this.getTransactions()) {
@@ -1337,7 +1410,7 @@ public class Block {
 				// Check transaction can even be processed
 				validationResult = transaction.isProcessable();
 				if (validationResult != Transaction.ValidationResult.OK) {
-					LOGGER.info(String.format("Error during transaction validation, tx %s: %s", Base58.encode(transactionData.getSignature()), validationResult.name()));
+					LOGGER.debug(String.format("Error during transaction validation, tx %s: %s", Base58.encode(transactionData.getSignature()), validationResult.name()));
 					return ValidationResult.TRANSACTION_INVALID;
 				}
 
@@ -1377,7 +1450,7 @@ public class Block {
 	 * <p>
 	 * NOTE: will execute ATs locally if not already done.<br>
 	 * This is so we have locally-generated AT states for comparison.
-	 * 
+	 *
 	 * @return OK, or some AT-related validation result
 	 * @throws DataException
 	 */
@@ -1453,11 +1526,11 @@ public class Block {
 	 * Note: this method does not store new AT state data into repository - that is handled by <tt>process()</tt>.
 	 * <p>
 	 * This method is not needed if fetching an existing block from the repository as AT state data will be loaded from repository as well.
-	 * 
+	 *
 	 * @see #isValid()
-	 * 
+	 *
 	 * @throws DataException
-	 * 
+	 *
 	 */
 	private void executeATs() throws DataException {
 		// We're expecting a lack of AT state data at this point.
@@ -1509,7 +1582,7 @@ public class Block {
 			return false;
 
 		Account mintingAccount = new PublicKeyAccount(this.repository, rewardShareData.getMinterPublicKey());
-		return mintingAccount.canMint();
+		return mintingAccount.canMint(false);
 	}
 
 	/**
@@ -1529,7 +1602,7 @@ public class Block {
 
 	/**
 	 * Process block, and its transactions, adding them to the blockchain.
-	 * 
+	 *
 	 * @throws DataException
 	 */
 	public void process() throws DataException {
@@ -1538,6 +1611,7 @@ public class Block {
 		this.blockData.setHeight(blockchainHeight + 1);
 
 		LOGGER.trace(() -> String.format("Processing block %d", this.blockData.getHeight()));
+		LOGGER.trace(() -> String.format("Online Reward Shares in process %s", this.cachedOnlineRewardShares));
 
 		if (this.blockData.getHeight() > 1) {
 
@@ -1550,21 +1624,23 @@ public class Block {
 				processBlockRewards();
 			}
 
-			if (this.blockData.getHeight() == 212937) {
-				// Apply fix for block 212937
-				Block212937.processFix(this);
-			}
-
-			if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV1Height()) {
-				SelfSponsorshipAlgoV1Block.processAccountPenalties(this);
-			}
-
-			if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV2Height()) {
-				SelfSponsorshipAlgoV2Block.processAccountPenalties(this);
-			}
-
-			if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV3Height()) {
-				SelfSponsorshipAlgoV3Block.processAccountPenalties(this);
+			if (!isTestnet) {
+				if (this.blockData.getHeight() == 212937) {
+					// Apply fix for block 212937
+					Block212937.processFix(this);
+				} else if (this.blockData.getHeight() == 1333492) {
+					// Apply fix for block 1333492
+					Block1333492.processFix(this);
+				} else if (InvalidBalanceBlocks.isAffectedBlock(this.blockData.getHeight())) {
+					// Apply fix for affected balance blocks
+					InvalidBalanceBlocks.processFix(this);
+				} else if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV1Height()) {
+					SelfSponsorshipAlgoV1Block.processAccountPenalties(this);
+				} else if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV2Height()) {
+					SelfSponsorshipAlgoV2Block.processAccountPenalties(this);
+				} else if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV3Height()) {
+					SelfSponsorshipAlgoV3Block.processAccountPenalties(this);
+				}
 			}
 		}
 
@@ -1607,7 +1683,17 @@ public class Block {
 		final List<Integer> cumulativeBlocksByLevel = BlockChain.getInstance().getCumulativeBlocksByLevel();
 		final int maximumLevel = cumulativeBlocksByLevel.size() - 1;
 
-		final List<ExpandedAccount> expandedAccounts = this.getExpandedAccounts();
+		final List<ExpandedAccount> expandedAccounts;
+
+		if (this.getBlockData().getHeight() < BlockChain.getInstance().getFixBatchRewardHeight()) {
+			expandedAccounts = this.getExpandedAccounts().stream().collect(Collectors.toList());
+		}
+		else {
+			expandedAccounts
+				= this.getExpandedAccounts().stream()
+					.filter(expandedAccount -> expandedAccount.isMinterMember)
+					.collect(Collectors.toList());
+		}
 
 		Set<AccountData> allUniqueExpandedAccounts = new HashSet<>();
 		for (ExpandedAccount expandedAccount : expandedAccounts) {
@@ -1828,7 +1914,7 @@ public class Block {
 
 	/**
 	 * Removes block from blockchain undoing transactions and adding them to unconfirmed pile.
-	 * 
+	 *
 	 * @throws DataException
 	 */
 	public void orphan() throws DataException {
@@ -1850,23 +1936,25 @@ public class Block {
 			// Invalidate expandedAccounts as they may have changed due to orphaning TRANSFER_PRIVS transactions, etc.
 			this.cachedExpandedAccounts = null;
 
-			if (this.blockData.getHeight() == 212937) {
-				// Revert fix for block 212937
-				Block212937.orphanFix(this);
+			if (!isTestnet) {
+				if (this.blockData.getHeight() == 212937) {
+					// Revert fix for block 212937
+					Block212937.orphanFix(this);
+				} else if (this.blockData.getHeight() == 1333492) {
+					// Revert fix for block 1333492
+					Block1333492.orphanFix(this);
+				} else if (InvalidBalanceBlocks.isAffectedBlock(this.blockData.getHeight())) {
+					// Revert fix for affected balance blocks
+					InvalidBalanceBlocks.orphanFix(this);
+				} else if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV1Height()) {
+					SelfSponsorshipAlgoV1Block.orphanAccountPenalties(this);
+				} else if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV2Height()) {
+					SelfSponsorshipAlgoV2Block.orphanAccountPenalties(this);
+				} else if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV3Height()) {
+					SelfSponsorshipAlgoV3Block.orphanAccountPenalties(this);
+				}
 			}
 
-			if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV1Height()) {
-				SelfSponsorshipAlgoV1Block.orphanAccountPenalties(this);
-			}
-
-			if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV2Height()) {
-				SelfSponsorshipAlgoV2Block.orphanAccountPenalties(this);
-			}
-
-			if (this.blockData.getHeight() == BlockChain.getInstance().getSelfSponsorshipAlgoV3Height()) {
-				SelfSponsorshipAlgoV3Block.orphanAccountPenalties(this);
-			}
-			
 			// Account levels and block rewards are only processed/orphaned on block reward distribution blocks
 			if (this.isRewardDistributionBlock()) {
 				// Block rewards, including transaction fees, removed after transactions undone
@@ -2005,7 +2093,17 @@ public class Block {
 		final List<Integer> cumulativeBlocksByLevel = BlockChain.getInstance().getCumulativeBlocksByLevel();
 		final int maximumLevel = cumulativeBlocksByLevel.size() - 1;
 
-		final List<ExpandedAccount> expandedAccounts = this.getExpandedAccounts();
+		final List<ExpandedAccount> expandedAccounts;
+
+		if (this.getBlockData().getHeight() < BlockChain.getInstance().getFixBatchRewardHeight()) {
+			expandedAccounts = this.getExpandedAccounts().stream().collect(Collectors.toList());
+		}
+		else {
+			expandedAccounts
+				= this.getExpandedAccounts().stream()
+					.filter(expandedAccount -> expandedAccount.isMinterMember)
+					.collect(Collectors.toList());
+		}
 
 		Set<AccountData> allUniqueExpandedAccounts = new HashSet<>();
 		for (ExpandedAccount expandedAccount : expandedAccounts) {
@@ -2200,6 +2298,7 @@ public class Block {
 		List<AccountBalanceData> accountBalanceDeltas = balanceChanges.entrySet().stream()
 				.map(entry -> new AccountBalanceData(entry.getKey(), Asset.QORT, entry.getValue()))
 				.collect(Collectors.toList());
+		LOGGER.trace("Account Balance Deltas: {}", accountBalanceDeltas);
 		this.repository.getAccountRepository().modifyAssetBalances(accountBalanceDeltas);
 	}
 
@@ -2208,34 +2307,44 @@ public class Block {
 		List<BlockRewardCandidate> rewardCandidates = new ArrayList<>();
 
 		// All online accounts
-		final List<ExpandedAccount> expandedAccounts = this.getExpandedAccounts();
+		final List<ExpandedAccount> expandedAccounts;
+
+		if (this.getBlockData().getHeight() < BlockChain.getInstance().getFixBatchRewardHeight()) {
+			expandedAccounts = this.getExpandedAccounts().stream().collect(Collectors.toList());
+		}
+		else {
+			expandedAccounts
+				= this.getExpandedAccounts().stream()
+					.filter(expandedAccount -> expandedAccount.isMinterMember)
+					.collect(Collectors.toList());
+		}
 
 		/*
 		 * Distribution rules:
-		 * 
+		 *
 		 * Distribution is based on the minting account of 'online' reward-shares.
-		 * 
+		 *
 		 * If ANY founders are online, then they receive the leftover non-distributed reward.
 		 * If NO founders are online, then account-level-based rewards are scaled up so 100% of reward is allocated.
-		 * 
+		 *
 		 * If ANY non-maxxed legacy QORA holders exist then they are always allocated their fixed share (e.g. 20%).
-		 * 
+		 *
 		 * There has to be either at least one 'online' account for blocks to be minted
 		 * so there is always either one account-level-based or founder reward candidate.
-		 * 
+		 *
 		 * Examples:
-		 * 
+		 *
 		 * With at least one founder online:
 		 * Level 1/2 accounts: 5%
 		 * Legacy QORA holders: 20%
 		 * Founders: ~75%
-		 * 
+		 *
 		 * No online founders:
 		 * Level 1/2 accounts: 5%
 		 * Level 5/6 accounts: 15%
 		 * Legacy QORA holders: 20%
 		 * Total: 40%
-		 * 
+		 *
 		 * After scaling account-level-based shares to fill 100%:
 		 * Level 1/2 accounts: 20%
 		 * Level 5/6 accounts: 60%
@@ -2251,7 +2360,6 @@ public class Block {
 		// Select the correct set of share bins based on block height
 		List<AccountLevelShareBin> accountLevelShareBinsForBlock = (this.blockData.getHeight() >= BlockChain.getInstance().getSharesByLevelV2Height()) ?
 				BlockChain.getInstance().getAccountLevelShareBinsV2() : BlockChain.getInstance().getAccountLevelShareBinsV1();
-
 		// Determine reward candidates based on account level
 		// This needs a deep copy, so the shares can be modified when tiers aren't activated yet
 		List<AccountLevelShareBin> accountLevelShareBins = new ArrayList<>();
@@ -2334,7 +2442,7 @@ public class Block {
 		final long qoraHoldersShare = BlockChain.getInstance().getQoraHoldersShareAtHeight(this.blockData.getHeight());
 
 		// Perform account-level-based reward scaling if appropriate
-		if (!haveFounders) {
+		if (!haveFounders && this.blockData.getHeight() < BlockChain.getInstance().getAdminsReplaceFoundersHeight() ) {
 			// Recalculate distribution ratios based on candidates
 
 			// Nothing shared? This shouldn't happen
@@ -2370,18 +2478,103 @@ public class Block {
 		}
 
 		// Add founders as reward candidate if appropriate
-		if (haveFounders) {
+		if (haveFounders && this.blockData.getHeight() < BlockChain.getInstance().getAdminsReplaceFoundersHeight()) {
 			// Yes: add to reward candidates list
 			BlockRewardDistributor founderDistributor = (distributionAmount, balanceChanges) -> distributeBlockRewardShare(distributionAmount, onlineFounderAccounts, balanceChanges);
 
 			final long foundersShare = 1_00000000 - totalShares;
 			BlockRewardCandidate rewardCandidate = new BlockRewardCandidate("Founders", foundersShare, founderDistributor);
 			rewardCandidates.add(rewardCandidate);
+			LOGGER.info("logging foundersShare prior to reward modifications {}",foundersShare);
+		}
+		else if (this.blockData.getHeight() >= BlockChain.getInstance().getAdminsReplaceFoundersHeight()) {
+			try (final Repository repository = RepositoryManager.getRepository()) {
+				GroupRepository groupRepository = repository.getGroupRepository();
+
+				List<Integer> mintingGroupIds = Groups.getGroupIdsToMint(BlockChain.getInstance(), this.blockData.getHeight());
+
+				// all minter admins
+				List<String> minterAdmins = Groups.getAllAdmins(groupRepository, mintingGroupIds);
+
+				// all minter admins that are online
+				List<ExpandedAccount> onlineMinterAdminAccounts
+					= expandedAccounts.stream()
+						.filter(expandedAccount ->  minterAdmins.contains(expandedAccount.getMintingAccount().getAddress()))
+						.collect(Collectors.toList());
+
+				long minterAdminShare;
+
+				if( onlineMinterAdminAccounts.isEmpty() ) {
+					minterAdminShare = 0;
+				}
+				else {
+					BlockRewardDistributor minterAdminDistributor
+							= (distributionAmount, balanceChanges)
+							->
+							distributeBlockRewardShare(distributionAmount, onlineMinterAdminAccounts, balanceChanges);
+
+					long adminShare = 1_00000000 - totalShares;
+					LOGGER.info("initial total Shares: {}", totalShares);
+					LOGGER.info("logging adminShare after hardfork, this is the primary reward that will be split {}", adminShare);
+
+					minterAdminShare = adminShare / 2;
+					BlockRewardCandidate minterAdminRewardCandidate
+							= new BlockRewardCandidate("Minter Admins", minterAdminShare, minterAdminDistributor);
+					rewardCandidates.add(minterAdminRewardCandidate);
+
+					totalShares += minterAdminShare;
+				}
+
+				LOGGER.info("MINTER ADMIN SHARE: {}",minterAdminShare);
+
+				// all dev admins
+				List<String> devAdminAddresses
+						= groupRepository.getGroupAdmins(1).stream()
+						.map(GroupAdminData::getAdmin)
+						.collect(Collectors.toList());
+
+				LOGGER.info("Removing NULL Account Address, Dev Admin Count = {}", devAdminAddresses.size());
+				devAdminAddresses.removeIf( address -> Group.NULL_OWNER_ADDRESS.equals(address) );
+				LOGGER.info("Removed NULL Account Address, Dev Admin Count = {}", devAdminAddresses.size());
+
+				BlockRewardDistributor devAdminDistributor
+					= (distributionAmount, balanceChanges) -> distributeToAccounts(distributionAmount, devAdminAddresses, balanceChanges);
+
+				long devAdminShare = 1_00000000 - totalShares;
+				LOGGER.info("DEV ADMIN SHARE: {}",devAdminShare);
+				BlockRewardCandidate devAdminRewardCandidate
+					= new BlockRewardCandidate("Dev Admins", devAdminShare,devAdminDistributor);
+				rewardCandidates.add(devAdminRewardCandidate);
+			}
 		}
 
 		return rewardCandidates;
 	}
 
+	/**
+	 * Distribute To Accounts
+	 *
+	 * Merges distribute shares to a map of distribution shares.
+	 *
+	 * @param distributionAmount the amount to distribute
+	 * @param accountAddressess the addresses to distribute to
+	 * @param balanceChanges the map of distribution shares, this gets appended to
+	 *
+	 * @return the total amount mapped to addresses for distribution
+	 */
+	public static long distributeToAccounts(long distributionAmount, List<String> accountAddressess, Map<String, Long> balanceChanges) {
+
+		if( accountAddressess.isEmpty() ) return 0;
+
+		long distibutionShare = distributionAmount / accountAddressess.size();
+
+		for(String accountAddress : accountAddressess ) {
+			balanceChanges.merge(accountAddress, distibutionShare, Long::sum);
+		}
+
+		return distibutionShare * accountAddressess.size();
+	}
+
 	private static long distributeBlockRewardShare(long distributionAmount, List<ExpandedAccount> accounts, Map<String, Long> balanceChanges) {
 		// Collate all expanded accounts by minting account
 		Map<String, List<ExpandedAccount>> accountsByMinter = new HashMap<>();
@@ -2541,9 +2734,11 @@ public class Block {
 				return;
 
 			int minterLevel = Account.getRewardShareEffectiveMintingLevel(this.repository, this.getMinter().getPublicKey());
+			String minterAddress = Account.getRewardShareMintingAddress(this.repository, this.getMinter().getPublicKey());
 
 			LOGGER.debug(String.format("======= BLOCK %d (%.8s) =======", this.getBlockData().getHeight(), Base58.encode(this.getSignature())));
 			LOGGER.debug(String.format("Timestamp: %d", this.getBlockData().getTimestamp()));
+			LOGGER.debug(String.format("Minter address: %s", minterAddress));
 			LOGGER.debug(String.format("Minter level: %d", minterLevel));
 			LOGGER.debug(String.format("Online accounts: %d", this.getBlockData().getOnlineAccountsCount()));
 			LOGGER.debug(String.format("AT count: %d", this.getBlockData().getATCount()));

src/main/java/org/qortal/block/Block1333492.java

@@ -0,0 +1,101 @@
+package org.qortal.block;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.eclipse.persistence.jaxb.JAXBContextFactory;
+import org.eclipse.persistence.jaxb.UnmarshallerProperties;
+import org.qortal.data.account.AccountBalanceData;
+import org.qortal.repository.DataException;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.UnmarshalException;
+import javax.xml.bind.Unmarshaller;
+import javax.xml.transform.stream.StreamSource;
+import java.io.InputStream;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Block 1333492
+ * <p>
+ * As described in InvalidBalanceBlocks.java, legacy bugs caused a small drift in account balances.
+ * This block adjusts any remaining differences between a clean reindex/resync and a recent bootstrap.
+ * <p>
+ * The block height 1333492 isn't significant - it's simply the height of a recent bootstrap at the
+ * time of development, so that the account balances could be accessed and compared against the same
+ * block in a reindexed db.
+ * <p>
+ * As with InvalidBalanceBlocks, the discrepancies are insignificant, except for a single
+ * account which has a 3.03 QORT discrepancy. This was due to the account being the first recipient
+ * of a name sale and encountering an early bug in this area.
+ * <p>
+ * The total offset for this block is 3.02816514 QORT.
+ */
+public final class Block1333492 {
+
+	private static final Logger LOGGER = LogManager.getLogger(Block1333492.class);
+	private static final String ACCOUNT_DELTAS_SOURCE = "block-1333492-deltas.json";
+
+	private static final List<AccountBalanceData> accountDeltas = readAccountDeltas();
+
+	private Block1333492() {
+		/* Do not instantiate */
+	}
+
+	@SuppressWarnings("unchecked")
+	private static List<AccountBalanceData> readAccountDeltas() {
+		Unmarshaller unmarshaller;
+
+		try {
+			// Create JAXB context aware of classes we need to unmarshal
+			JAXBContext jc = JAXBContextFactory.createContext(new Class[] {
+				AccountBalanceData.class
+			}, null);
+
+			// Create unmarshaller
+			unmarshaller = jc.createUnmarshaller();
+
+			// Set the unmarshaller media type to JSON
+			unmarshaller.setProperty(UnmarshallerProperties.MEDIA_TYPE, "application/json");
+
+			// Tell unmarshaller that there's no JSON root element in the JSON input
+			unmarshaller.setProperty(UnmarshallerProperties.JSON_INCLUDE_ROOT, false);
+		} catch (JAXBException e) {
+			String message = "Failed to setup unmarshaller to read block 1333492 deltas";
+			LOGGER.error(message, e);
+			throw new RuntimeException(message, e);
+		}
+
+		ClassLoader classLoader = BlockChain.class.getClassLoader();
+		InputStream in = classLoader.getResourceAsStream(ACCOUNT_DELTAS_SOURCE);
+		StreamSource jsonSource = new StreamSource(in);
+
+		try  {
+			// Attempt to unmarshal JSON stream to BlockChain config
+			return (List<AccountBalanceData>) unmarshaller.unmarshal(jsonSource, AccountBalanceData.class).getValue();
+		} catch (UnmarshalException e) {
+			String message = "Failed to parse block 1333492 deltas";
+			LOGGER.error(message, e);
+			throw new RuntimeException(message, e);
+		} catch (JAXBException e) {
+			String message = "Unexpected JAXB issue while processing block 1333492 deltas";
+			LOGGER.error(message, e);
+			throw new RuntimeException(message, e);
+		}
+	}
+
+	public static void processFix(Block block) throws DataException {
+		block.repository.getAccountRepository().modifyAssetBalances(accountDeltas);
+	}
+
+	public static void orphanFix(Block block) throws DataException {
+		// Create inverse deltas
+		List<AccountBalanceData> inverseDeltas = accountDeltas.stream()
+				.map(delta -> new AccountBalanceData(delta.getAddress(), delta.getAssetId(), 0 - delta.getBalance()))
+				.collect(Collectors.toList());
+
+		block.repository.getAccountRepository().modifyAssetBalances(inverseDeltas);
+	}
+
+}

src/main/java/org/qortal/block/BlockChain.java

@@ -71,6 +71,7 @@ public class BlockChain {
 		transactionV6Timestamp,
 		disableReferenceTimestamp,
 		increaseOnlineAccountsDifficultyTimestamp,
+		decreaseOnlineAccountsDifficultyTimestamp,
 		onlineAccountMinterLevelValidationHeight,
 		selfSponsorshipAlgoV1Height,
 		selfSponsorshipAlgoV2Height,
@@ -80,7 +81,18 @@ public class BlockChain {
 		arbitraryOptionalFeeTimestamp,
 		unconfirmableRewardSharesHeight,
 		disableTransferPrivsTimestamp,
-		enableTransferPrivsTimestamp
+		enableTransferPrivsTimestamp,
+		cancelSellNameValidationTimestamp,
+		disableRewardshareHeight,
+		enableRewardshareHeight,
+		onlyMintWithNameHeight,
+		removeOnlyMintWithNameHeight,
+		groupMemberCheckHeight,
+		fixBatchRewardHeight,
+		adminsReplaceFoundersHeight,
+		nullGroupMembershipHeight,
+		ignoreLevelForRewardShareHeight,
+		adminQueryFixHeight
 	}
 
 	// Custom transaction fees
@@ -201,6 +213,13 @@ public class BlockChain {
 	private int maxRewardSharesPerFounderMintingAccount;
 	private int founderEffectiveMintingLevel;
 
+	public static class IdsForHeight {
+		public int height;
+		public List<Integer> ids;
+	}
+
+	private List<IdsForHeight> mintingGroupIds;
+
 	/** Minimum time to retain online account signatures (ms) for block validity checks. */
 	private long onlineAccountSignaturesMinLifetime;
 
@@ -211,6 +230,10 @@ public class BlockChain {
 	 * featureTriggers because unit tests need to set this value via Reflection. */
 	private long onlineAccountsModulusV2Timestamp;
 
+	/** Feature trigger timestamp for ONLINE_ACCOUNTS_MODULUS time interval decrease. Can't use
+	 * featureTriggers because unit tests need to set this value via Reflection. */
+	private long onlineAccountsModulusV3Timestamp;
+
 	/** Snapshot timestamp for self sponsorship algo V1 */
 	private long selfSponsorshipAlgoV1SnapshotTimestamp;
 
@@ -397,6 +420,9 @@ public class BlockChain {
 		return this.onlineAccountsModulusV2Timestamp;
 	}
 
+	public long getOnlineAccountsModulusV3Timestamp() {
+		return this.onlineAccountsModulusV3Timestamp;
+	}
 
 	/* Block reward batching */
 	public long getBlockRewardBatchStartHeight() {
@@ -524,6 +550,10 @@ public class BlockChain {
 		return this.onlineAccountSignaturesMaxLifetime;
 	}
 
+	public List<IdsForHeight> getMintingGroupIds() {
+		return mintingGroupIds;
+	}
+
 	public CiyamAtSettings getCiyamAtSettings() {
 		return this.ciyamAtSettings;
 	}
@@ -570,6 +600,10 @@ public class BlockChain {
 		return this.featureTriggers.get(FeatureTrigger.increaseOnlineAccountsDifficultyTimestamp.name()).longValue();
 	}
 
+	public long getDecreaseOnlineAccountsDifficultyTimestamp() {
+		return this.featureTriggers.get(FeatureTrigger.decreaseOnlineAccountsDifficultyTimestamp.name()).longValue();
+	}
+
 	public int getSelfSponsorshipAlgoV1Height() {
 		return this.featureTriggers.get(FeatureTrigger.selfSponsorshipAlgoV1Height.name()).intValue();
 	}
@@ -610,6 +644,50 @@ public class BlockChain {
 		return this.featureTriggers.get(FeatureTrigger.enableTransferPrivsTimestamp.name()).longValue();
 	}
 
+	public long getCancelSellNameValidationTimestamp() {
+		return this.featureTriggers.get(FeatureTrigger.cancelSellNameValidationTimestamp.name()).longValue();
+	}
+
+	public int getDisableRewardshareHeight() {
+		return this.featureTriggers.get(FeatureTrigger.disableRewardshareHeight.name()).intValue();
+	}
+
+	public int getEnableRewardshareHeight() {
+		return this.featureTriggers.get(FeatureTrigger.enableRewardshareHeight.name()).intValue();
+	}
+
+	public int getOnlyMintWithNameHeight() {
+		return this.featureTriggers.get(FeatureTrigger.onlyMintWithNameHeight.name()).intValue();
+	}
+
+	public int getRemoveOnlyMintWithNameHeight() {
+		return this.featureTriggers.get(FeatureTrigger.removeOnlyMintWithNameHeight.name()).intValue();
+	}
+
+	public int getGroupMemberCheckHeight() {
+		return this.featureTriggers.get(FeatureTrigger.groupMemberCheckHeight.name()).intValue();
+	}
+
+	public int getFixBatchRewardHeight() {
+		return this.featureTriggers.get(FeatureTrigger.fixBatchRewardHeight.name()).intValue();
+	}
+
+	public int getAdminsReplaceFoundersHeight() {
+		return this.featureTriggers.get(FeatureTrigger.adminsReplaceFoundersHeight.name()).intValue();
+	}
+
+	public int getNullGroupMembershipHeight() {
+		return this.featureTriggers.get(FeatureTrigger.nullGroupMembershipHeight.name()).intValue();
+	}
+
+	public int getIgnoreLevelForRewardShareHeight() {
+		return this.featureTriggers.get(FeatureTrigger.ignoreLevelForRewardShareHeight.name()).intValue();
+	}
+
+	public int getAdminQueryFixHeight() {
+		return this.featureTriggers.get(FeatureTrigger.adminQueryFixHeight.name()).intValue();
+	}
+
 	// More complex getters for aspects that change by height or timestamp
 
 	public long getRewardAtHeight(int ourHeight) {
@@ -805,10 +883,12 @@ public class BlockChain {
 		boolean isLite = Settings.getInstance().isLite();
 		boolean canBootstrap = Settings.getInstance().getBootstrap();
 		boolean needsArchiveRebuild = false;
+		int checkHeight = 0;
 		BlockData chainTip;
 
 		try (final Repository repository = RepositoryManager.getRepository()) {
 			chainTip = repository.getBlockRepository().getLastBlock();
+			checkHeight = repository.getBlockRepository().getBlockchainHeight();
 
 			// Ensure archive is (at least partially) intact, and force a bootstrap if it isn't
 			if (!isTopOnly && archiveEnabled && canBootstrap) {
@@ -824,6 +904,17 @@ public class BlockChain {
 				}
 			}
 
+			if (!canBootstrap) {
+				if (checkHeight > 2) {
+					LOGGER.info("Retrieved block 2 from archive. Syncing from genesis block resumed!");
+				} else {
+					needsArchiveRebuild = (repository.getBlockArchiveRepository().fromHeight(2) == null);
+					if (needsArchiveRebuild) {
+						LOGGER.info("Couldn't retrieve block 2 from archive. Bootstrapping is disabled. Syncing from genesis block!");
+					}
+				}
+			}
+
 			// Validate checkpoints
 			// Limited to topOnly nodes for now, in order to reduce risk, and to solve a real-world problem with divergent topOnly nodes
 			// TODO: remove the isTopOnly conditional below once this feature has had more testing time
@@ -856,11 +947,12 @@ public class BlockChain {
 
 		// Check first block is Genesis Block
 		if (!isGenesisBlockValid() || needsArchiveRebuild) {
-			try {
-				rebuildBlockchain();
-
-			} catch (InterruptedException e) {
-				throw new DataException(String.format("Interrupted when trying to rebuild blockchain: %s", e.getMessage()));
+			if (checkHeight < 3) {
+				try {
+					rebuildBlockchain();
+				} catch (InterruptedException e) {
+					throw new DataException(String.format("Interrupted when trying to rebuild blockchain: %s", e.getMessage()));
+				}
 			}
 		}
 
@@ -1001,5 +1093,4 @@ public class BlockChain {
 			blockchainLock.unlock();
 		}
 	}
-
 }

src/main/java/org/qortal/block/InvalidBalanceBlocks.java

@@ -0,0 +1,134 @@
+package org.qortal.block;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.eclipse.persistence.jaxb.JAXBContextFactory;
+import org.eclipse.persistence.jaxb.UnmarshallerProperties;
+import org.qortal.data.account.AccountBalanceData;
+import org.qortal.repository.DataException;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.UnmarshalException;
+import javax.xml.bind.Unmarshaller;
+import javax.xml.transform.stream.StreamSource;
+import java.io.InputStream;
+import java.util.*;
+import java.util.stream.Collectors;
+
+
+/**
+ * Due to various bugs - which have been fixed - a small amount of balance drift occurred
+ * in the chainstate of running nodes and bootstraps, when compared with a clean sync from genesis.
+ * This resulted in a significant number of invalid transactions in the chain history due to
+ * subtle balance discrepancies. The sum of all discrepancies that resulted in an invalid
+ * transaction is 0.00198322 QORT, so despite the large quantity of transactions, they
+ * represent an insignificant amount when summed.
+ * <p>
+ * This class is responsible for retroactively fixing all the past transactions which
+ * are invalid due to the balance discrepancies.
+ */
+
+
+public final class InvalidBalanceBlocks {
+
+	private static final Logger LOGGER = LogManager.getLogger(InvalidBalanceBlocks.class);
+
+	private static final String ACCOUNT_DELTAS_SOURCE = "invalid-transaction-balance-deltas.json";
+
+	private static final List<AccountBalanceData> accountDeltas = readAccountDeltas();
+	private static final List<Integer> affectedHeights = getAffectedHeights();
+
+	private InvalidBalanceBlocks() {
+		/* Do not instantiate */
+	}
+
+	@SuppressWarnings("unchecked")
+	private static List<AccountBalanceData> readAccountDeltas() {
+		Unmarshaller unmarshaller;
+
+		try {
+			// Create JAXB context aware of classes we need to unmarshal
+			JAXBContext jc = JAXBContextFactory.createContext(new Class[] {
+					AccountBalanceData.class
+			}, null);
+
+			// Create unmarshaller
+			unmarshaller = jc.createUnmarshaller();
+
+			// Set the unmarshaller media type to JSON
+			unmarshaller.setProperty(UnmarshallerProperties.MEDIA_TYPE, "application/json");
+
+			// Tell unmarshaller that there's no JSON root element in the JSON input
+			unmarshaller.setProperty(UnmarshallerProperties.JSON_INCLUDE_ROOT, false);
+		} catch (JAXBException e) {
+			String message = "Failed to setup unmarshaller to read block 212937 deltas";
+			LOGGER.error(message, e);
+			throw new RuntimeException(message, e);
+		}
+
+		ClassLoader classLoader = BlockChain.class.getClassLoader();
+		InputStream in = classLoader.getResourceAsStream(ACCOUNT_DELTAS_SOURCE);
+		StreamSource jsonSource = new StreamSource(in);
+
+		try  {
+			// Attempt to unmarshal JSON stream to BlockChain config
+			return (List<AccountBalanceData>) unmarshaller.unmarshal(jsonSource, AccountBalanceData.class).getValue();
+		} catch (UnmarshalException e) {
+			String message = "Failed to parse balance deltas";
+			LOGGER.error(message, e);
+			throw new RuntimeException(message, e);
+		} catch (JAXBException e) {
+			String message = "Unexpected JAXB issue while processing balance deltas";
+			LOGGER.error(message, e);
+			throw new RuntimeException(message, e);
+		}
+	}
+
+	private static List<Integer> getAffectedHeights() {
+		List<Integer> heights = new ArrayList<>();
+		for (AccountBalanceData accountBalanceData : accountDeltas) {
+			if (!heights.contains(accountBalanceData.getHeight())) {
+				heights.add(accountBalanceData.getHeight());
+			}
+		}
+		return heights;
+	}
+
+	private static List<AccountBalanceData> getAccountDeltasAtHeight(int height) {
+		return accountDeltas.stream().filter(a -> a.getHeight() == height).collect(Collectors.toList());
+	}
+
+	public static boolean isAffectedBlock(int height) {
+		return affectedHeights.contains(Integer.valueOf(height));
+	}
+
+	public static void processFix(Block block) throws DataException {
+		Integer blockHeight = block.getBlockData().getHeight();
+		List<AccountBalanceData> deltas = getAccountDeltasAtHeight(blockHeight);
+		if (deltas == null) {
+			throw new DataException(String.format("Unable to lookup invalid balance data for block height %d", blockHeight));
+		}
+
+		block.repository.getAccountRepository().modifyAssetBalances(deltas);
+
+		LOGGER.info("Applied balance patch for block {}", blockHeight);
+	}
+
+	public static void orphanFix(Block block) throws DataException {
+		Integer blockHeight = block.getBlockData().getHeight();
+		List<AccountBalanceData> deltas = getAccountDeltasAtHeight(blockHeight);
+		if (deltas == null) {
+			throw new DataException(String.format("Unable to lookup invalid balance data for block height %d", blockHeight));
+		}
+
+		// Create inverse delta(s)
+		for (AccountBalanceData accountBalanceData : deltas) {
+			AccountBalanceData inverseBalanceData = new AccountBalanceData(accountBalanceData.getAddress(), accountBalanceData.getAssetId(), -accountBalanceData.getBalance());
+			block.repository.getAccountRepository().modifyAssetBalances(List.of(inverseBalanceData));
+		}
+
+		LOGGER.info("Reverted balance patch for block {}", blockHeight);
+	}
+
+}

src/main/java/org/qortal/controller/BlockMinter.java

@@ -64,6 +64,7 @@ public class BlockMinter extends Thread {
 	@Override
 	public void run() {
 		Thread.currentThread().setName("BlockMinter");
+		Thread.currentThread().setPriority(MAX_PRIORITY);
 
 		if (Settings.getInstance().isTopOnly() || Settings.getInstance().isLite()) {
 			// Top only and lite nodes do not sign blocks
@@ -96,364 +97,375 @@ public class BlockMinter extends Thread {
 
 		final boolean isSingleNodeTestnet = Settings.getInstance().isSingleNodeTestnet();
 
-		try (final Repository repository = RepositoryManager.getRepository()) {
-			// Going to need this a lot...
-			BlockRepository blockRepository = repository.getBlockRepository();
-
-			// Flags for tracking change in whether minting is possible,
-			// so we can notify Controller, and further update SysTray, etc.
-			boolean isMintingPossible = false;
-			boolean wasMintingPossible = isMintingPossible;
+		// Flags for tracking change in whether minting is possible,
+		// so we can notify Controller, and further update SysTray, etc.
+		boolean isMintingPossible = false;
+		boolean wasMintingPossible = isMintingPossible;
+		try {
 			while (running) {
-				if (isMintingPossible != wasMintingPossible)
-					Controller.getInstance().onMintingPossibleChange(isMintingPossible);
+				// recreate repository for new loop iteration
+				try (final Repository repository = RepositoryManager.getRepository()) {
 
-				wasMintingPossible = isMintingPossible;
+					// Going to need this a lot...
+					BlockRepository blockRepository = repository.getBlockRepository();
 
-				try {
-					// Free up any repository locks
-					repository.discardChanges();
+					if (isMintingPossible != wasMintingPossible)
+						Controller.getInstance().onMintingPossibleChange(isMintingPossible);
 
-					// Sleep for a while.
-					// It's faster on single node testnets, to allow lots of blocks to be minted quickly.
-					Thread.sleep(isSingleNodeTestnet ? 50 : 1000);
-
-					isMintingPossible = false;
-
-					final Long now = NTP.getTime();
-					if (now == null)
-						continue;
-
-					final Long minLatestBlockTimestamp = Controller.getMinimumLatestBlockTimestamp();
-					if (minLatestBlockTimestamp == null)
-						continue;
-
-					List<MintingAccountData> mintingAccountsData = repository.getAccountRepository().getMintingAccounts();
-					// No minting accounts?
-					if (mintingAccountsData.isEmpty())
-						continue;
-
-					// Disregard minting accounts that are no longer valid, e.g. by transfer/loss of founder flag or account level
-					// Note that minting accounts are actually reward-shares in Qortal
-					Iterator<MintingAccountData> madi = mintingAccountsData.iterator();
-					while (madi.hasNext()) {
-						MintingAccountData mintingAccountData = madi.next();
-
-						RewardShareData rewardShareData = repository.getAccountRepository().getRewardShare(mintingAccountData.getPublicKey());
-						if (rewardShareData == null) {
-							// Reward-share doesn't exist - probably cancelled but not yet removed from node's list of minting accounts
-							madi.remove();
-							continue;
-						}
-
-						Account mintingAccount = new Account(repository, rewardShareData.getMinter());
-						if (!mintingAccount.canMint()) {
-							// Minting-account component of reward-share can no longer mint - disregard
-							madi.remove();
-							continue;
-						}
-
-						// Optional (non-validated) prevention of block submissions below a defined level.
-						// This is an unvalidated version of Blockchain.minAccountLevelToMint
-						// and exists only to reduce block candidates by default.
-						int level = mintingAccount.getEffectiveMintingLevel();
-						if (level < BlockChain.getInstance().getMinAccountLevelForBlockSubmissions()) {
-							madi.remove();
-                        }
-					}
-
-					// Needs a mutable copy of the unmodifiableList
-					List<Peer> peers = new ArrayList<>(Network.getInstance().getImmutableHandshakedPeers());
-					BlockData lastBlockData = blockRepository.getLastBlock();
-
-					// Disregard peers that have "misbehaved" recently
-					peers.removeIf(Controller.hasMisbehaved);
-
-					// Disregard peers that don't have a recent block, but only if we're not in recovery mode.
-					// In that mode, we want to allow minting on top of older blocks, to recover stalled networks.
-					if (!Synchronizer.getInstance().getRecoveryMode())
-						peers.removeIf(Controller.hasNoRecentBlock);
-
-					// Don't mint if we don't have enough up-to-date peers as where would the transactions/consensus come from?
-					if (peers.size() < Settings.getInstance().getMinBlockchainPeers())
-						continue;
-
-					// If we are stuck on an invalid block, we should allow an alternative to be minted
-					boolean recoverInvalidBlock = false;
-					if (Synchronizer.getInstance().timeInvalidBlockLastReceived != null) {
-						// We've had at least one invalid block
-						long timeSinceLastValidBlock = NTP.getTime() - Synchronizer.getInstance().timeValidBlockLastReceived;
-						long timeSinceLastInvalidBlock = NTP.getTime() - Synchronizer.getInstance().timeInvalidBlockLastReceived;
-						if (timeSinceLastValidBlock > INVALID_BLOCK_RECOVERY_TIMEOUT) {
-							if (timeSinceLastInvalidBlock < INVALID_BLOCK_RECOVERY_TIMEOUT) {
-								// Last valid block was more than 10 mins ago, but we've had an invalid block since then
-								// Assume that the chain has stalled because there is no alternative valid candidate
-								// Enter recovery mode to allow alternative, valid candidates to be minted
-								recoverInvalidBlock = true;
-							}
-						}
-					}
-
-					// If our latest block isn't recent then we need to synchronize instead of minting, unless we're in recovery mode.
-					if (!peers.isEmpty() && lastBlockData.getTimestamp() < minLatestBlockTimestamp)
-						if (!Synchronizer.getInstance().getRecoveryMode() && !recoverInvalidBlock)
-							continue;
-
-					// There are enough peers with a recent block and our latest block is recent
-					// so go ahead and mint a block if possible.
-					isMintingPossible = true;
-
-					// Check blockchain hasn't changed
-					if (previousBlockData == null || !Arrays.equals(previousBlockData.getSignature(), lastBlockData.getSignature())) {
-						previousBlockData = lastBlockData;
-						newBlocks.clear();
-
-						// Reduce log timeout
-						logTimeout = 10 * 1000L;
-
-						// Last low weight block is no longer valid
-						parentSignatureForLastLowWeightBlock = null;
-					}
-
-					// Discard accounts we have already built blocks with
-					mintingAccountsData.removeIf(mintingAccountData -> newBlocks.stream().anyMatch(newBlock -> Arrays.equals(newBlock.getBlockData().getMinterPublicKey(), mintingAccountData.getPublicKey())));
-
-					// Do we need to build any potential new blocks?
-					List<PrivateKeyAccount> newBlocksMintingAccounts = mintingAccountsData.stream().map(accountData -> new PrivateKeyAccount(repository, accountData.getPrivateKey())).collect(Collectors.toList());
-
-					// We might need to sit the next block out, if one of our minting accounts signed the previous one
-					// Skip this check for single node testnets, since they definitely need to mint every block
-					byte[] previousBlockMinter = previousBlockData.getMinterPublicKey();
-					boolean mintedLastBlock = mintingAccountsData.stream().anyMatch(mintingAccount -> Arrays.equals(mintingAccount.getPublicKey(), previousBlockMinter));
-					if (mintedLastBlock && !isSingleNodeTestnet) {
-						LOGGER.trace(String.format("One of our keys signed the last block, so we won't sign the next one"));
-						continue;
-					}
-
-					if (parentSignatureForLastLowWeightBlock != null) {
-						// The last iteration found a higher weight block in the network, so sleep for a while
-						// to allow is to sync the higher weight chain. We are sleeping here rather than when
-						// detected as we don't want to hold the blockchain lock open.
-						LOGGER.info("Sleeping for 10 seconds...");
-						Thread.sleep(10 * 1000L);
-					}
-
-					for (PrivateKeyAccount mintingAccount : newBlocksMintingAccounts) {
-						// First block does the AT heavy-lifting
-						if (newBlocks.isEmpty()) {
-							Block newBlock = Block.mint(repository, previousBlockData, mintingAccount);
-							if (newBlock == null) {
-								// For some reason we can't mint right now
-								moderatedLog(() -> LOGGER.info("Couldn't build a to-be-minted block"));
-								continue;
-							}
-
-							newBlocks.add(newBlock);
-						} else {
-							// The blocks for other minters require less effort...
-							Block newBlock = newBlocks.get(0).remint(mintingAccount);
-							if (newBlock == null) {
-								// For some reason we can't mint right now
-								moderatedLog(() -> LOGGER.error("Couldn't rebuild a to-be-minted block"));
-								continue;
-							}
-
-							newBlocks.add(newBlock);
-						}
-					}
-
-					// No potential block candidates?
-					if (newBlocks.isEmpty())
-						continue;
-
-					// Make sure we're the only thread modifying the blockchain
-					ReentrantLock blockchainLock = Controller.getInstance().getBlockchainLock();
-					if (!blockchainLock.tryLock(30, TimeUnit.SECONDS)) {
-						LOGGER.debug("Couldn't acquire blockchain lock even after waiting 30 seconds");
-						continue;
-					}
-
-					boolean newBlockMinted = false;
-					Block newBlock = null;
+					wasMintingPossible = isMintingPossible;
 
 					try {
-						// Clear repository session state so we have latest view of data
+						// reset the repository, to the repository recreated for this loop iteration
+						for( Block newBlock : newBlocks ) newBlock.setRepository(repository);
+
+						// Free up any repository locks
 						repository.discardChanges();
 
-						// Now that we have blockchain lock, do final check that chain hasn't changed
-						BlockData latestBlockData = blockRepository.getLastBlock();
-						if (!Arrays.equals(lastBlockData.getSignature(), latestBlockData.getSignature()))
+						// Sleep for a while.
+						// It's faster on single node testnets, to allow lots of blocks to be minted quickly.
+						Thread.sleep(isSingleNodeTestnet ? 50 : 1000);
+
+						isMintingPossible = false;
+
+						final Long now = NTP.getTime();
+						if (now == null)
 							continue;
 
-						List<Block> goodBlocks = new ArrayList<>();
-						boolean wasInvalidBlockDiscarded = false;
-						Iterator<Block> newBlocksIterator = newBlocks.iterator();
+						final Long minLatestBlockTimestamp = Controller.getMinimumLatestBlockTimestamp();
+						if (minLatestBlockTimestamp == null)
+							continue;
 
-						while (newBlocksIterator.hasNext()) {
-							Block testBlock = newBlocksIterator.next();
+						List<MintingAccountData> mintingAccountsData = repository.getAccountRepository().getMintingAccounts();
+						// No minting accounts?
+						if (mintingAccountsData.isEmpty())
+							continue;
 
-							// Is new block's timestamp valid yet?
-							// We do a separate check as some timestamp checks are skipped for testchains
-							if (testBlock.isTimestampValid() != ValidationResult.OK)
+						// Disregard minting accounts that are no longer valid, e.g. by transfer/loss of founder flag or account level
+						// Note that minting accounts are actually reward-shares in Qortal
+						Iterator<MintingAccountData> madi = mintingAccountsData.iterator();
+						while (madi.hasNext()) {
+							MintingAccountData mintingAccountData = madi.next();
+
+							RewardShareData rewardShareData = repository.getAccountRepository().getRewardShare(mintingAccountData.getPublicKey());
+							if (rewardShareData == null) {
+								// Reward-share doesn't exist - probably cancelled but not yet removed from node's list of minting accounts
+								madi.remove();
+								continue;
+							}
+
+							Account mintingAccount = new Account(repository, rewardShareData.getMinter());
+							if (!mintingAccount.canMint(true)) {
+								// Minting-account component of reward-share can no longer mint - disregard
+								madi.remove();
+								continue;
+							}
+
+							// Optional (non-validated) prevention of block submissions below a defined level.
+							// This is an unvalidated version of Blockchain.minAccountLevelToMint
+							// and exists only to reduce block candidates by default.
+							int level = mintingAccount.getEffectiveMintingLevel();
+							if (level < BlockChain.getInstance().getMinAccountLevelForBlockSubmissions()) {
+								madi.remove();
+							}
+						}
+
+						// Needs a mutable copy of the unmodifiableList
+						List<Peer> peers = new ArrayList<>(Network.getInstance().getImmutableHandshakedPeers());
+						BlockData lastBlockData = blockRepository.getLastBlock();
+
+						// Disregard peers that have "misbehaved" recently
+						peers.removeIf(Controller.hasMisbehaved);
+
+						// Disregard peers that don't have a recent block, but only if we're not in recovery mode.
+						// In that mode, we want to allow minting on top of older blocks, to recover stalled networks.
+						if (!Synchronizer.getInstance().getRecoveryMode())
+							peers.removeIf(Controller.hasNoRecentBlock);
+
+						// Don't mint if we don't have enough up-to-date peers as where would the transactions/consensus come from?
+						if (peers.size() < Settings.getInstance().getMinBlockchainPeers())
+							continue;
+
+						// If we are stuck on an invalid block, we should allow an alternative to be minted
+						boolean recoverInvalidBlock = false;
+						if (Synchronizer.getInstance().timeInvalidBlockLastReceived != null) {
+							// We've had at least one invalid block
+							long timeSinceLastValidBlock = NTP.getTime() - Synchronizer.getInstance().timeValidBlockLastReceived;
+							long timeSinceLastInvalidBlock = NTP.getTime() - Synchronizer.getInstance().timeInvalidBlockLastReceived;
+							if (timeSinceLastValidBlock > INVALID_BLOCK_RECOVERY_TIMEOUT) {
+								if (timeSinceLastInvalidBlock < INVALID_BLOCK_RECOVERY_TIMEOUT) {
+									// Last valid block was more than 10 mins ago, but we've had an invalid block since then
+									// Assume that the chain has stalled because there is no alternative valid candidate
+									// Enter recovery mode to allow alternative, valid candidates to be minted
+									recoverInvalidBlock = true;
+								}
+							}
+						}
+
+						// If our latest block isn't recent then we need to synchronize instead of minting, unless we're in recovery mode.
+						if (!peers.isEmpty() && lastBlockData.getTimestamp() < minLatestBlockTimestamp)
+							if (!Synchronizer.getInstance().getRecoveryMode() && !recoverInvalidBlock)
 								continue;
 
-							testBlock.preProcess();
+						// There are enough peers with a recent block and our latest block is recent
+						// so go ahead and mint a block if possible.
+						isMintingPossible = true;
 
-							// Is new block valid yet? (Before adding unconfirmed transactions)
-							ValidationResult result = testBlock.isValid();
-							if (result != ValidationResult.OK) {
-								moderatedLog(() -> LOGGER.error(String.format("To-be-minted block invalid '%s' before adding transactions?", result.name())));
+						// Check blockchain hasn't changed
+						if (previousBlockData == null || !Arrays.equals(previousBlockData.getSignature(), lastBlockData.getSignature())) {
+							previousBlockData = lastBlockData;
+							newBlocks.clear();
 
-								newBlocksIterator.remove();
-								wasInvalidBlockDiscarded = true;
-								/*
-								 * Bail out fast so that we loop around from the top again.
-								 * This gives BlockMinter the possibility to remint this candidate block using another block from newBlocks,
-								 * via the Blocks.remint() method, which avoids having to re-process Block ATs all over again.
-								 * Particularly useful if some aspect of Blocks changes due a timestamp-based feature-trigger (see BlockChain class).
-								 */
-								break;
-							}
+							// Reduce log timeout
+							logTimeout = 10 * 1000L;
 
-							goodBlocks.add(testBlock);
+							// Last low weight block is no longer valid
+							parentSignatureForLastLowWeightBlock = null;
 						}
 
-						if (wasInvalidBlockDiscarded || goodBlocks.isEmpty())
+						// Discard accounts we have already built blocks with
+						mintingAccountsData.removeIf(mintingAccountData -> newBlocks.stream().anyMatch(newBlock -> Arrays.equals(newBlock.getBlockData().getMinterPublicKey(), mintingAccountData.getPublicKey())));
+
+						// Do we need to build any potential new blocks?
+						List<PrivateKeyAccount> newBlocksMintingAccounts = mintingAccountsData.stream().map(accountData -> new PrivateKeyAccount(repository, accountData.getPrivateKey())).collect(Collectors.toList());
+
+						// We might need to sit the next block out, if one of our minting accounts signed the previous one
+						// Skip this check for single node testnets, since they definitely need to mint every block
+						byte[] previousBlockMinter = previousBlockData.getMinterPublicKey();
+						boolean mintedLastBlock = mintingAccountsData.stream().anyMatch(mintingAccount -> Arrays.equals(mintingAccount.getPublicKey(), previousBlockMinter));
+						if (mintedLastBlock && !isSingleNodeTestnet) {
+							LOGGER.trace(String.format("One of our keys signed the last block, so we won't sign the next one"));
 							continue;
-
-						// Pick best block
-						final int parentHeight = previousBlockData.getHeight();
-						final byte[] parentBlockSignature = previousBlockData.getSignature();
-
-						BigInteger bestWeight = null;
-
-						for (int bi = 0; bi < goodBlocks.size(); ++bi) {
-							BlockData blockData = goodBlocks.get(bi).getBlockData();
-
-							BlockSummaryData blockSummaryData = new BlockSummaryData(blockData);
-							int minterLevel = Account.getRewardShareEffectiveMintingLevel(repository, blockData.getMinterPublicKey());
-							blockSummaryData.setMinterLevel(minterLevel);
-
-							BigInteger blockWeight = Block.calcBlockWeight(parentHeight, parentBlockSignature, blockSummaryData);
-
-							if (bestWeight == null || blockWeight.compareTo(bestWeight) < 0) {
-								newBlock = goodBlocks.get(bi);
-								bestWeight = blockWeight;
-							}
 						}
 
-						try {
-							if (this.higherWeightChainExists(repository, bestWeight)) {
+						if (parentSignatureForLastLowWeightBlock != null) {
+							// The last iteration found a higher weight block in the network, so sleep for a while
+							// to allow is to sync the higher weight chain. We are sleeping here rather than when
+							// detected as we don't want to hold the blockchain lock open.
+							LOGGER.info("Sleeping for 10 seconds...");
+							Thread.sleep(10 * 1000L);
+						}
 
-								// Check if the base block has updated since the last time we were here
-								if (parentSignatureForLastLowWeightBlock == null || timeOfLastLowWeightBlock == null ||
-										!Arrays.equals(parentSignatureForLastLowWeightBlock, previousBlockData.getSignature())) {
-									// We've switched to a different chain, so reset the timer
-									timeOfLastLowWeightBlock = NTP.getTime();
-								}
-								parentSignatureForLastLowWeightBlock = previousBlockData.getSignature();
-
-								// If less than 30 seconds has passed since first detection the higher weight chain,
-								// we should skip our block submission to give us the opportunity to sync to the better chain
-								if (NTP.getTime() - timeOfLastLowWeightBlock < 30 * 1000L) {
-									LOGGER.info("Higher weight chain found in peers, so not signing a block this round");
-									LOGGER.info("Time since detected: {}", NTP.getTime() - timeOfLastLowWeightBlock);
+						for (PrivateKeyAccount mintingAccount : newBlocksMintingAccounts) {
+							// First block does the AT heavy-lifting
+							if (newBlocks.isEmpty()) {
+								Block newBlock = Block.mint(repository, previousBlockData, mintingAccount);
+								if (newBlock == null) {
+									// For some reason we can't mint right now
+									moderatedLog(() -> LOGGER.info("Couldn't build a to-be-minted block"));
 									continue;
-								} else {
-									// More than 30 seconds have passed, so we should submit our block candidate anyway.
-									LOGGER.info("More than 30 seconds passed, so proceeding to submit block candidate...");
 								}
+
+								newBlocks.add(newBlock);
 							} else {
-								LOGGER.debug("No higher weight chain found in peers");
+								// The blocks for other minters require less effort...
+								Block newBlock = newBlocks.get(0).remint(mintingAccount);
+								if (newBlock == null) {
+									// For some reason we can't mint right now
+									moderatedLog(() -> LOGGER.error("Couldn't rebuild a to-be-minted block"));
+									continue;
+								}
+
+								newBlocks.add(newBlock);
 							}
-						} catch (DataException e) {
-							LOGGER.debug("Unable to check for a higher weight chain. Proceeding anyway...");
 						}
 
-						// Discard any uncommitted changes as a result of the higher weight chain detection
-						repository.discardChanges();
+						// No potential block candidates?
+						if (newBlocks.isEmpty())
+							continue;
 
-						// Clear variables that track low weight blocks
-						parentSignatureForLastLowWeightBlock = null;
-						timeOfLastLowWeightBlock = null;
-
-						Long unconfirmedStartTime = NTP.getTime();
-
-						// Add unconfirmed transactions
-						addUnconfirmedTransactions(repository, newBlock);
-
-						LOGGER.info(String.format("Adding %d unconfirmed transactions took %d ms", newBlock.getTransactions().size(), (NTP.getTime()-unconfirmedStartTime)));
-
-						// Sign to create block's signature
-						newBlock.sign();
-
-						// Is newBlock still valid?
-						ValidationResult validationResult = newBlock.isValid();
-						if (validationResult != ValidationResult.OK) {
-							// No longer valid? Report and discard
-							LOGGER.error(String.format("To-be-minted block now invalid '%s' after adding unconfirmed transactions?", validationResult.name()));
-
-							// Rebuild block candidates, just to be sure
-							newBlocks.clear();
+						// Make sure we're the only thread modifying the blockchain
+						ReentrantLock blockchainLock = Controller.getInstance().getBlockchainLock();
+						if (!blockchainLock.tryLock(30, TimeUnit.SECONDS)) {
+							LOGGER.debug("Couldn't acquire blockchain lock even after waiting 30 seconds");
 							continue;
 						}
 
-						// Add to blockchain - something else will notice and broadcast new block to network
+						boolean newBlockMinted = false;
+						Block newBlock = null;
+
 						try {
-							newBlock.process();
+							// Clear repository session state so we have latest view of data
+							repository.discardChanges();
 
-							repository.saveChanges();
+							// Now that we have blockchain lock, do final check that chain hasn't changed
+							BlockData latestBlockData = blockRepository.getLastBlock();
+							if (!Arrays.equals(lastBlockData.getSignature(), latestBlockData.getSignature()))
+								continue;
 
-							LOGGER.info(String.format("Minted new block: %d", newBlock.getBlockData().getHeight()));
+							List<Block> goodBlocks = new ArrayList<>();
+							boolean wasInvalidBlockDiscarded = false;
+							Iterator<Block> newBlocksIterator = newBlocks.iterator();
 
-							RewardShareData rewardShareData = repository.getAccountRepository().getRewardShare(newBlock.getBlockData().getMinterPublicKey());
+							while (newBlocksIterator.hasNext()) {
+								Block testBlock = newBlocksIterator.next();
 
-							if (rewardShareData != null) {
-								LOGGER.info(String.format("Minted block %d, sig %.8s, parent sig: %.8s by %s on behalf of %s",
-										newBlock.getBlockData().getHeight(),
-										Base58.encode(newBlock.getBlockData().getSignature()),
-										Base58.encode(newBlock.getParent().getSignature()),
-										rewardShareData.getMinter(),
-										rewardShareData.getRecipient()));
-							} else {
-								LOGGER.info(String.format("Minted block %d, sig %.8s, parent sig: %.8s by %s",
-										newBlock.getBlockData().getHeight(),
-										Base58.encode(newBlock.getBlockData().getSignature()),
-										Base58.encode(newBlock.getParent().getSignature()),
-										newBlock.getMinter().getAddress()));
+								// Is new block's timestamp valid yet?
+								// We do a separate check as some timestamp checks are skipped for testchains
+								if (testBlock.isTimestampValid() != ValidationResult.OK)
+									continue;
+
+								testBlock.preProcess();
+
+								// Is new block valid yet? (Before adding unconfirmed transactions)
+								ValidationResult result = testBlock.isValid();
+								if (result != ValidationResult.OK) {
+									moderatedLog(() -> LOGGER.error(String.format("To-be-minted block invalid '%s' before adding transactions?", result.name())));
+
+									newBlocksIterator.remove();
+									wasInvalidBlockDiscarded = true;
+									/*
+									 * Bail out fast so that we loop around from the top again.
+									 * This gives BlockMinter the possibility to remint this candidate block using another block from newBlocks,
+									 * via the Blocks.remint() method, which avoids having to re-process Block ATs all over again.
+									 * Particularly useful if some aspect of Blocks changes due a timestamp-based feature-trigger (see BlockChain class).
+									 */
+									break;
+								}
+
+								goodBlocks.add(testBlock);
 							}
 
-							// Notify network after we're released blockchain lock
-							newBlockMinted = true;
+							if (wasInvalidBlockDiscarded || goodBlocks.isEmpty())
+								continue;
 
-							// Notify Controller
-							repository.discardChanges(); // clear transaction status to prevent deadlocks
-							Controller.getInstance().onNewBlock(newBlock.getBlockData());
-						} catch (DataException e) {
-							// Unable to process block - report and discard
-							LOGGER.error("Unable to process newly minted block?", e);
-							newBlocks.clear();
-						} catch (ArithmeticException e) {
-							// Unable to process block - report and discard
-							LOGGER.error("Unable to process newly minted block?", e);
-							newBlocks.clear();
+							// Pick best block
+							final int parentHeight = previousBlockData.getHeight();
+							final byte[] parentBlockSignature = previousBlockData.getSignature();
+
+							BigInteger bestWeight = null;
+
+							for (int bi = 0; bi < goodBlocks.size(); ++bi) {
+								BlockData blockData = goodBlocks.get(bi).getBlockData();
+
+								BlockSummaryData blockSummaryData = new BlockSummaryData(blockData);
+								int minterLevel = Account.getRewardShareEffectiveMintingLevel(repository, blockData.getMinterPublicKey());
+								blockSummaryData.setMinterLevel(minterLevel);
+
+								BigInteger blockWeight = Block.calcBlockWeight(parentHeight, parentBlockSignature, blockSummaryData);
+
+								if (bestWeight == null || blockWeight.compareTo(bestWeight) < 0) {
+									newBlock = goodBlocks.get(bi);
+									bestWeight = blockWeight;
+								}
+							}
+
+							try {
+								if (this.higherWeightChainExists(repository, bestWeight)) {
+
+									// Check if the base block has updated since the last time we were here
+									if (parentSignatureForLastLowWeightBlock == null || timeOfLastLowWeightBlock == null ||
+											!Arrays.equals(parentSignatureForLastLowWeightBlock, previousBlockData.getSignature())) {
+										// We've switched to a different chain, so reset the timer
+										timeOfLastLowWeightBlock = NTP.getTime();
+									}
+									parentSignatureForLastLowWeightBlock = previousBlockData.getSignature();
+
+									// If less than 30 seconds has passed since first detection the higher weight chain,
+									// we should skip our block submission to give us the opportunity to sync to the better chain
+									if (NTP.getTime() - timeOfLastLowWeightBlock < 30 * 1000L) {
+										LOGGER.info("Higher weight chain found in peers, so not signing a block this round");
+										LOGGER.info("Time since detected: {}", NTP.getTime() - timeOfLastLowWeightBlock);
+										continue;
+									} else {
+										// More than 30 seconds have passed, so we should submit our block candidate anyway.
+										LOGGER.info("More than 30 seconds passed, so proceeding to submit block candidate...");
+									}
+								} else {
+									LOGGER.debug("No higher weight chain found in peers");
+								}
+							} catch (DataException e) {
+								LOGGER.debug("Unable to check for a higher weight chain. Proceeding anyway...");
+							}
+
+							// Discard any uncommitted changes as a result of the higher weight chain detection
+							repository.discardChanges();
+
+							// Clear variables that track low weight blocks
+							parentSignatureForLastLowWeightBlock = null;
+							timeOfLastLowWeightBlock = null;
+
+							Long unconfirmedStartTime = NTP.getTime();
+
+							// Add unconfirmed transactions
+							addUnconfirmedTransactions(repository, newBlock);
+
+							LOGGER.info(String.format("Adding %d unconfirmed transactions took %d ms", newBlock.getTransactions().size(), (NTP.getTime() - unconfirmedStartTime)));
+
+							// Sign to create block's signature
+							newBlock.sign();
+
+							// Is newBlock still valid?
+							ValidationResult validationResult = newBlock.isValid();
+							if (validationResult != ValidationResult.OK) {
+								// No longer valid? Report and discard
+								LOGGER.error(String.format("To-be-minted block now invalid '%s' after adding unconfirmed transactions?", validationResult.name()));
+
+								// Rebuild block candidates, just to be sure
+								newBlocks.clear();
+								continue;
+							}
+
+							// Add to blockchain - something else will notice and broadcast new block to network
+							try {
+								newBlock.process();
+
+								repository.saveChanges();
+
+								LOGGER.info(String.format("Minted new block: %d", newBlock.getBlockData().getHeight()));
+
+								RewardShareData rewardShareData = repository.getAccountRepository().getRewardShare(newBlock.getBlockData().getMinterPublicKey());
+
+								if (rewardShareData != null) {
+									LOGGER.info(String.format("Minted block %d, sig %.8s, parent sig: %.8s by %s on behalf of %s",
+											newBlock.getBlockData().getHeight(),
+											Base58.encode(newBlock.getBlockData().getSignature()),
+											Base58.encode(newBlock.getParent().getSignature()),
+											rewardShareData.getMinter(),
+											rewardShareData.getRecipient()));
+								} else {
+									LOGGER.info(String.format("Minted block %d, sig %.8s, parent sig: %.8s by %s",
+											newBlock.getBlockData().getHeight(),
+											Base58.encode(newBlock.getBlockData().getSignature()),
+											Base58.encode(newBlock.getParent().getSignature()),
+											newBlock.getMinter().getAddress()));
+								}
+
+								// Notify network after we're released blockchain lock
+								newBlockMinted = true;
+
+								// Notify Controller
+								repository.discardChanges(); // clear transaction status to prevent deadlocks
+								Controller.getInstance().onNewBlock(newBlock.getBlockData());
+							} catch (DataException e) {
+								// Unable to process block - report and discard
+								LOGGER.error("Unable to process newly minted block?", e);
+								newBlocks.clear();
+							} catch (ArithmeticException e) {
+								// Unable to process block - report and discard
+								LOGGER.error("Unable to process newly minted block?", e);
+								newBlocks.clear();
+							}
+						} finally {
+							blockchainLock.unlock();
 						}
-					} finally {
-						blockchainLock.unlock();
-					}
 
-					if (newBlockMinted) {
-						// Broadcast our new chain to network
-						Network.getInstance().broadcastOurChain();
-					}
+						if (newBlockMinted) {
+							// Broadcast our new chain to network
+							Network.getInstance().broadcastOurChain();
+						}
 
-				} catch (InterruptedException e) {
-					// We've been interrupted - time to exit
-					return;
+					} catch (InterruptedException e) {
+						// We've been interrupted - time to exit
+						return;
+					}
+				} catch (DataException e) {
+					LOGGER.warn("Repository issue while running block minter - NO LONGER MINTING", e);
+				} catch (Exception e) {
+					LOGGER.error(e.getMessage(), e);
 				}
 			}
-		} catch (DataException e) {
-			LOGGER.warn("Repository issue while running block minter - NO LONGER MINTING", e);
+		} catch (Exception e) {
+			LOGGER.error(e.getMessage(), e);
 		}
 	}
 

src/main/java/org/qortal/controller/Controller.java

@@ -13,6 +13,8 @@ import org.qortal.block.Block;
 import org.qortal.block.BlockChain;
 import org.qortal.block.BlockChain.BlockTimingByHeight;
 import org.qortal.controller.arbitrary.*;
+import org.qortal.controller.hsqldb.HSQLDBBalanceRecorder;
+import org.qortal.controller.hsqldb.HSQLDBDataCacheManager;
 import org.qortal.controller.repository.NamesDatabaseIntegrityCheck;
 import org.qortal.controller.repository.PruneManager;
 import org.qortal.controller.tradebot.TradeBot;
@@ -32,6 +34,7 @@ import org.qortal.gui.Gui;
 import org.qortal.gui.SysTray;
 import org.qortal.network.Network;
 import org.qortal.network.Peer;
+import org.qortal.network.PeerAddress;
 import org.qortal.network.message.*;
 import org.qortal.repository.*;
 import org.qortal.repository.hsqldb.HSQLDBRepositoryFactory;
@@ -48,8 +51,11 @@ import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
+import java.net.InetSocketAddress;
+import java.net.UnknownHostException;
 import java.nio.file.Path;
 import java.nio.file.Paths;
+import java.security.SecureRandom;
 import java.security.Security;
 import java.time.LocalDateTime;
 import java.time.ZoneOffset;
@@ -67,6 +73,8 @@ import java.util.stream.Collectors;
 
 public class Controller extends Thread {
 
+	public static HSQLDBRepositoryFactory REPOSITORY_FACTORY;
+
 	static {
 		// This must go before any calls to LogManager/Logger
 		System.setProperty("log4j2.formatMsgNoLookups", "true");
@@ -95,7 +103,7 @@ public class Controller extends Thread {
 	private final long buildTimestamp; // seconds
 	private final String[] savedArgs;
 
-	private ExecutorService callbackExecutor = Executors.newFixedThreadPool(3);
+	private ExecutorService callbackExecutor = Executors.newFixedThreadPool(4);
 	private volatile boolean notifyGroupMembershipChange = false;
 
 	/** Latest blocks on our chain. Note: tail/last is the latest block. */
@@ -397,14 +405,44 @@ public class Controller extends Thread {
 
 		LOGGER.info("Starting repository");
 		try {
-			RepositoryFactory repositoryFactory = new HSQLDBRepositoryFactory(getRepositoryUrl());
-			RepositoryManager.setRepositoryFactory(repositoryFactory);
+			REPOSITORY_FACTORY = new HSQLDBRepositoryFactory(getRepositoryUrl());
+			RepositoryManager.setRepositoryFactory(REPOSITORY_FACTORY);
 			RepositoryManager.setRequestedCheckpoint(Boolean.TRUE);
 
 			try (final Repository repository = RepositoryManager.getRepository()) {
-				RepositoryManager.rebuildTransactionSequences(repository);
+				// RepositoryManager.rebuildTransactionSequences(repository);
 				ArbitraryDataCacheManager.getInstance().buildArbitraryResourcesCache(repository, false);
 			}
+
+			if( Settings.getInstance().isDbCacheEnabled() ) {
+				LOGGER.info("Db Cache Starting ...");
+				HSQLDBDataCacheManager hsqldbDataCacheManager = new HSQLDBDataCacheManager();
+				hsqldbDataCacheManager.start();
+			}
+			else {
+				LOGGER.info("Db Cache Disabled");
+			}
+
+			LOGGER.info("Arbitrary Indexing Starting ...");
+			ArbitraryIndexUtils.startCaching(
+				Settings.getInstance().getArbitraryIndexingPriority(),
+				Settings.getInstance().getArbitraryIndexingFrequency()
+			);
+
+			if( Settings.getInstance().isBalanceRecorderEnabled() ) {
+				Optional<HSQLDBBalanceRecorder> recorder = HSQLDBBalanceRecorder.getInstance();
+
+				if( recorder.isPresent() ) {
+					LOGGER.info("Balance Recorder Starting ...");
+					recorder.get().start();
+				}
+				else {
+					LOGGER.info("Balance Recorder won't start.");
+				}
+			}
+			else {
+				LOGGER.info("Balance Recorder Disabled");
+			}
 		} catch (DataException e) {
 			// If exception has no cause or message then repository is in use by some other process.
 			if (e.getCause() == null && e.getMessage() == null) {
@@ -485,7 +523,6 @@ public class Controller extends Thread {
 			@Override
 			public void run() {
 				Thread.currentThread().setName("Shutdown hook");
-
 				Controller.getInstance().shutdown();
 			}
 		});
@@ -510,6 +547,16 @@ public class Controller extends Thread {
 		ArbitraryDataStorageManager.getInstance().start();
 		ArbitraryDataRenderManager.getInstance().start();
 
+		// start rebuild arbitrary resource cache timer task
+		if( Settings.getInstance().isRebuildArbitraryResourceCacheTaskEnabled() ) {
+			new Timer().schedule(
+				new RebuildArbitraryResourceCacheTask(),
+				Settings.getInstance().getRebuildArbitraryResourceCacheTaskDelay() * RebuildArbitraryResourceCacheTask.MILLIS_IN_MINUTE,
+				Settings.getInstance().getRebuildArbitraryResourceCacheTaskPeriod() * RebuildArbitraryResourceCacheTask.MILLIS_IN_HOUR
+			);
+		}
+
+
 		LOGGER.info("Starting online accounts manager");
 		OnlineAccountsManager.getInstance().start();
 
@@ -565,10 +612,33 @@ public class Controller extends Thread {
 		// If GUI is enabled, we're no longer starting up but actually running now
 		Gui.getInstance().notifyRunning();
 
-		// Check every 10 minutes to see if the block minter is running
-		Timer timer = new Timer();
+		if (Settings.getInstance().isAutoRestartEnabled()) {
+			// Check every 10 minutes if we have enough connected peers
+			Timer checkConnectedPeers = new Timer();
 
-		timer.schedule(new TimerTask() {
+			checkConnectedPeers.schedule(new TimerTask() {
+				@Override
+				public void run() {
+					// Get the connected peers
+					int myConnectedPeers = Network.getInstance().getImmutableHandshakedPeers().size();
+					LOGGER.debug("Node have {} connected peers", myConnectedPeers);
+					if (myConnectedPeers == 0) {
+						// Restart node if we have 0 peers
+						LOGGER.info("Node have no connected peers, restarting node");
+						try {
+							RestartNode.attemptToRestart();
+						} catch (Exception e) {
+							LOGGER.error("Unable to restart the node", e);
+						}
+					}
+				}
+			}, 10*60*1000, 10*60*1000);
+		}
+
+		// Check every 10 minutes to see if the block minter is running
+		Timer checkBlockMinter = new Timer();
+
+		checkBlockMinter.schedule(new TimerTask() {
 			@Override
 			public void run() {
 				if (blockMinter.isAlive()) {
@@ -592,6 +662,71 @@ public class Controller extends Thread {
 				}
 			}
 		}, 10*60*1000, 10*60*1000);
+
+		// Check if we need sync from genesis and start syncing
+		Timer syncFromGenesis = new Timer();
+		syncFromGenesis.schedule(new TimerTask() {
+			@Override
+			public void run() {
+				LOGGER.debug("Start sync from genesis check.");
+				boolean canBootstrap = Settings.getInstance().getBootstrap();
+				boolean needsArchiveRebuild = false;
+				int checkHeight = 0;
+
+				try (final Repository repository = RepositoryManager.getRepository()){
+					needsArchiveRebuild = (repository.getBlockArchiveRepository().fromHeight(2) == null);
+					checkHeight = repository.getBlockRepository().getBlockchainHeight();
+				} catch (DataException e) {
+					throw new RuntimeException(e);
+				}
+
+				if (canBootstrap || !needsArchiveRebuild || checkHeight > 3) {
+					LOGGER.debug("Bootstrapping is enabled or we have more than 2 blocks, cancel sync from genesis check.");
+					syncFromGenesis.cancel();
+					return;
+				}
+
+				if (needsArchiveRebuild && !canBootstrap) {
+					LOGGER.info("Start syncing from genesis!");
+					List<Peer> seeds = new ArrayList<>(Network.getInstance().getImmutableHandshakedPeers());
+
+					// Check if have a qualified peer to sync
+					if (seeds.isEmpty()) {
+						LOGGER.info("No connected peers, will try again later.");
+						return;
+					}
+
+					int index = new SecureRandom().nextInt(seeds.size());
+					String syncNode = String.valueOf(seeds.get(index));
+					PeerAddress peerAddress = PeerAddress.fromString(syncNode);
+					InetSocketAddress resolvedAddress = null;
+
+					try {
+						resolvedAddress = peerAddress.toSocketAddress();
+					} catch (UnknownHostException e) {
+						throw new RuntimeException(e);
+					}
+
+					InetSocketAddress finalResolvedAddress = resolvedAddress;
+					Peer targetPeer = seeds.stream().filter(peer -> peer.getResolvedAddress().equals(finalResolvedAddress)).findFirst().orElse(null);
+					Synchronizer.SynchronizationResult syncResult;
+
+					try {
+						do {
+							try {
+								syncResult = Synchronizer.getInstance().actuallySynchronize(targetPeer, true);
+							} catch (InterruptedException e) {
+								throw new RuntimeException(e);
+							}
+						}
+						while (syncResult == Synchronizer.SynchronizationResult.OK);
+					} finally {
+						// We are syncing now, so can cancel the check
+						syncFromGenesis.cancel();
+					}
+				}
+			}
+		}, 3*60*1000, 3*60*1000);
 	}
 
 	/** Called by AdvancedInstaller's launch EXE in single-instance mode, when an instance is already running. */

src/main/java/org/qortal/controller/OnlineAccountsManager.java

@@ -13,6 +13,7 @@ import org.qortal.crypto.MemoryPoW;
 import org.qortal.crypto.Qortal25519Extras;
 import org.qortal.data.account.MintingAccountData;
 import org.qortal.data.account.RewardShareData;
+import org.qortal.data.group.GroupMemberData;
 import org.qortal.data.network.OnlineAccountData;
 import org.qortal.network.Network;
 import org.qortal.network.Peer;
@@ -24,6 +25,7 @@ import org.qortal.repository.Repository;
 import org.qortal.repository.RepositoryManager;
 import org.qortal.settings.Settings;
 import org.qortal.utils.Base58;
+import org.qortal.utils.Groups;
 import org.qortal.utils.NTP;
 import org.qortal.utils.NamedThreadFactory;
 
@@ -44,6 +46,7 @@ public class OnlineAccountsManager {
      */
     private static final long ONLINE_TIMESTAMP_MODULUS_V1 = 5 * 60 * 1000L;
     private static final long ONLINE_TIMESTAMP_MODULUS_V2 = 30 * 60 * 1000L;
+    private static final long ONLINE_TIMESTAMP_MODULUS_V3 = 10 * 60 * 1000L;
 
     /**
      * How many 'current' timestamp-sets of online accounts we cache.
@@ -67,12 +70,13 @@ public class OnlineAccountsManager {
     private static final long ONLINE_ACCOUNTS_COMPUTE_INITIAL_SLEEP_INTERVAL = 30 * 1000L; // ms
 
     // MemoryPoW - mainnet
-    public static final int POW_BUFFER_SIZE = 1 * 1024 * 1024; // bytes
+    public static final int POW_BUFFER_SIZE = 1024 * 1024; // bytes
     public static final int POW_DIFFICULTY_V1 = 18; // leading zero bits
     public static final int POW_DIFFICULTY_V2 = 19; // leading zero bits
+    public static final int POW_DIFFICULTY_V3 = 6; // leading zero bits
 
     // MemoryPoW - testnet
-    public static final int POW_BUFFER_SIZE_TESTNET = 1 * 1024 * 1024; // bytes
+    public static final int POW_BUFFER_SIZE_TESTNET = 1024 * 1024; // bytes
     public static final int POW_DIFFICULTY_TESTNET = 5; // leading zero bits
 
     // IMPORTANT: if we ever need to dynamically modify the buffer size using a feature trigger, the
@@ -80,7 +84,7 @@ public class OnlineAccountsManager {
     // one for the transition period.
     private static long[] POW_VERIFY_WORK_BUFFER = new long[getPoWBufferSize() / 8];
 
-    private final ScheduledExecutorService executor = Executors.newScheduledThreadPool(4, new NamedThreadFactory("OnlineAccounts"));
+    private final ScheduledExecutorService executor = Executors.newScheduledThreadPool(4, new NamedThreadFactory("OnlineAccounts", Thread.NORM_PRIORITY));
     private volatile boolean isStopping = false;
 
     private final Set<OnlineAccountData> onlineAccountsImportQueue = ConcurrentHashMap.newKeySet();
@@ -106,11 +110,15 @@ public class OnlineAccountsManager {
 
     public static long getOnlineTimestampModulus() {
         Long now = NTP.getTime();
-        if (now != null && now >= BlockChain.getInstance().getOnlineAccountsModulusV2Timestamp()) {
+        if (now != null && now >= BlockChain.getInstance().getOnlineAccountsModulusV2Timestamp() && now < BlockChain.getInstance().getOnlineAccountsModulusV3Timestamp()) {
             return ONLINE_TIMESTAMP_MODULUS_V2;
         }
+        if (now != null && now >= BlockChain.getInstance().getOnlineAccountsModulusV3Timestamp()) {
+            return ONLINE_TIMESTAMP_MODULUS_V3;
+        }
         return ONLINE_TIMESTAMP_MODULUS_V1;
     }
+
     public static Long getCurrentOnlineAccountTimestamp() {
         Long now = NTP.getTime();
         if (now == null)
@@ -135,9 +143,12 @@ public class OnlineAccountsManager {
         if (Settings.getInstance().isTestNet())
             return POW_DIFFICULTY_TESTNET;
 
-        if (timestamp >= BlockChain.getInstance().getIncreaseOnlineAccountsDifficultyTimestamp())
+        if (timestamp >= BlockChain.getInstance().getIncreaseOnlineAccountsDifficultyTimestamp() && timestamp < BlockChain.getInstance().getDecreaseOnlineAccountsDifficultyTimestamp())
             return POW_DIFFICULTY_V2;
 
+        if (timestamp >= BlockChain.getInstance().getDecreaseOnlineAccountsDifficultyTimestamp())
+            return POW_DIFFICULTY_V3;
+
         return POW_DIFFICULTY_V1;
     }
 
@@ -215,6 +226,15 @@ public class OnlineAccountsManager {
         Set<OnlineAccountData> onlineAccountsToAdd = new HashSet<>();
         Set<OnlineAccountData> onlineAccountsToRemove = new HashSet<>();
         try (final Repository repository = RepositoryManager.getRepository()) {
+
+            int blockHeight = repository.getBlockRepository().getBlockchainHeight();
+
+            List<String> mintingGroupMemberAddresses
+                = Groups.getAllMembers(
+                    repository.getGroupRepository(),
+                    Groups.getGroupIdsToMint(BlockChain.getInstance(), blockHeight)
+            );
+
             for (OnlineAccountData onlineAccountData : this.onlineAccountsImportQueue) {
                 if (isStopping)
                     return;
@@ -227,7 +247,7 @@ public class OnlineAccountsManager {
                     continue;
                 }
 
-                boolean isValid = this.isValidCurrentAccount(repository, onlineAccountData);
+                boolean isValid = this.isValidCurrentAccount(repository, mintingGroupMemberAddresses, onlineAccountData);
                 if (isValid)
                     onlineAccountsToAdd.add(onlineAccountData);
 
@@ -306,7 +326,7 @@ public class OnlineAccountsManager {
         return inplaceArray;
     }
 
-    private static boolean isValidCurrentAccount(Repository repository, OnlineAccountData onlineAccountData) throws DataException {
+    private static boolean isValidCurrentAccount(Repository repository, List<String> mintingGroupMemberAddresses, OnlineAccountData onlineAccountData) throws DataException {
         final Long now = NTP.getTime();
         if (now == null)
             return false;
@@ -341,9 +361,14 @@ public class OnlineAccountsManager {
             LOGGER.trace(() -> String.format("Rejecting unknown online reward-share public key %s", Base58.encode(rewardSharePublicKey)));
             return false;
         }
+        // reject account address that are not in the MINTER Group
+        else if( !mintingGroupMemberAddresses.contains(rewardShareData.getMinter())) {
+            LOGGER.trace(() -> String.format("Rejecting online reward-share that is not in MINTER Group, account %s", rewardShareData.getMinter()));
+            return false;
+        }
 
         Account mintingAccount = new Account(repository, rewardShareData.getMinter());
-        if (!mintingAccount.canMint()) {
+        if (!mintingAccount.canMint(true)) {  // group validation is a few lines above
             // Minting-account component of reward-share can no longer mint - disregard
             LOGGER.trace(() -> String.format("Rejecting online reward-share with non-minting account %s", mintingAccount.getAddress()));
             return false;
@@ -530,7 +555,7 @@ public class OnlineAccountsManager {
                     }
 
                     Account mintingAccount = new Account(repository, rewardShareData.getMinter());
-                    if (!mintingAccount.canMint()) {
+                    if (!mintingAccount.canMint(true)) {
                         // Minting-account component of reward-share can no longer mint - disregard
                         iterator.remove();
                         continue;

src/main/java/org/qortal/controller/PirateChainWalletController.java

@@ -65,6 +65,7 @@ public class PirateChainWalletController extends Thread {
     @Override
     public void run() {
         Thread.currentThread().setName("Pirate Chain Wallet Controller");
+        Thread.currentThread().setPriority(MIN_PRIORITY);
 
         try {
             while (running && !Controller.isStopping()) {

src/main/java/org/qortal/controller/Synchronizer.java

@@ -118,8 +118,12 @@ public class Synchronizer extends Thread {
 	}
 
 	public static Synchronizer getInstance() {
-		if (instance == null)
+		if (instance == null) {
 			instance = new Synchronizer();
+			instance.setPriority(Settings.getInstance().getSynchronizerThreadPriority());
+
+			LOGGER.info("thread priority = " + instance.getPriority());
+		}
 
 		return instance;
 	}

src/main/java/org/qortal/controller/arbitrary/ArbitraryDataBuilderThread.java

@@ -14,6 +14,7 @@ import java.io.IOException;
 import java.util.Comparator;
 import java.util.Map;
 
+import static java.lang.Thread.NORM_PRIORITY;
 import static org.qortal.data.arbitrary.ArbitraryResourceStatus.Status.NOT_PUBLISHED;
 
 
@@ -28,6 +29,7 @@ public class ArbitraryDataBuilderThread implements Runnable {
     @Override
     public void run() {
         Thread.currentThread().setName("Arbitrary Data Builder Thread");
+        Thread.currentThread().setPriority(NORM_PRIORITY);
         ArbitraryDataBuildManager buildManager = ArbitraryDataBuildManager.getInstance();
 
         while (!Controller.isStopping()) {

src/main/java/org/qortal/controller/arbitrary/ArbitraryDataCacheManager.java

@@ -2,22 +2,30 @@ package org.qortal.controller.arbitrary;
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
-import org.qortal.api.resource.TransactionsResource;
 import org.qortal.controller.Controller;
 import org.qortal.data.arbitrary.ArbitraryResourceData;
 import org.qortal.data.transaction.ArbitraryTransactionData;
+import org.qortal.event.DataMonitorEvent;
+import org.qortal.event.EventBus;
 import org.qortal.gui.SplashFrame;
 import org.qortal.repository.DataException;
 import org.qortal.repository.Repository;
 import org.qortal.repository.RepositoryManager;
 import org.qortal.settings.Settings;
 import org.qortal.transaction.ArbitraryTransaction;
-import org.qortal.transaction.Transaction;
 import org.qortal.utils.Base58;
 
+import java.text.NumberFormat;
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Function;
+import java.util.stream.Collectors;
 
 public class ArbitraryDataCacheManager extends Thread {
 
@@ -29,6 +37,11 @@ public class ArbitraryDataCacheManager extends Thread {
     /** Queue of arbitrary transactions that require cache updates */
     private final List<ArbitraryTransactionData> updateQueue = Collections.synchronizedList(new ArrayList<>());
 
+    private static final NumberFormat FORMATTER = NumberFormat.getNumberInstance();
+
+    static {
+        FORMATTER.setGroupingUsed(true);
+    }
 
     public static synchronized ArbitraryDataCacheManager getInstance() {
         if (instance == null) {
@@ -41,20 +54,26 @@ public class ArbitraryDataCacheManager extends Thread {
     @Override
     public void run() {
         Thread.currentThread().setName("Arbitrary Data Cache Manager");
+        Thread.currentThread().setPriority(NORM_PRIORITY);
 
         try {
             while (!Controller.isStopping()) {
-                Thread.sleep(500L);
+                try {
+                    Thread.sleep(500L);
 
-                // Process queue
-                processResourceQueue();
+                    // Process queue
+                    processResourceQueue();
+                } catch (Exception e) {
+                    LOGGER.error(e.getMessage(), e);
+                    Thread.sleep(600_000L); // wait 10 minutes to continue
+                }
             }
-        } catch (InterruptedException e) {
-            // Fall through to exit thread
-        }
 
-        // Clear queue before terminating thread
-        processResourceQueue();
+            // Clear queue before terminating thread
+            processResourceQueue();
+        } catch (Exception e) {
+            LOGGER.error(e.getMessage(), e);
+        }
     }
 
     public void shutdown() {
@@ -84,14 +103,25 @@ public class ArbitraryDataCacheManager extends Thread {
                 // Update arbitrary resource caches
                 try {
                     ArbitraryTransaction arbitraryTransaction = new ArbitraryTransaction(repository, transactionData);
-                    arbitraryTransaction.updateArbitraryResourceCache(repository);
-                    arbitraryTransaction.updateArbitraryMetadataCache(repository);
+                    arbitraryTransaction.updateArbitraryResourceCacheIncludingMetadata(repository, new HashSet<>(0), new HashMap<>(0));
                     repository.saveChanges();
 
                     // Update status as separate commit, as this is more prone to failure
                     arbitraryTransaction.updateArbitraryResourceStatus(repository);
                     repository.saveChanges();
 
+                    EventBus.INSTANCE.notify(
+                        new DataMonitorEvent(
+                            System.currentTimeMillis(),
+                            transactionData.getIdentifier(),
+                            transactionData.getName(),
+                            transactionData.getService().name(),
+                            "updated resource cache and status, queue",
+                            transactionData.getTimestamp(),
+                            transactionData.getTimestamp()
+                        )
+                    );
+
                     LOGGER.debug(() -> String.format("Finished processing transaction %.8s in arbitrary resource queue...", Base58.encode(transactionData.getSignature())));
 
                 } catch (DataException e) {
@@ -102,6 +132,9 @@ public class ArbitraryDataCacheManager extends Thread {
         } catch (DataException e) {
             LOGGER.error("Repository issue while processing arbitrary resource cache updates", e);
         }
+        catch (Exception e) {
+            LOGGER.error(e.getMessage(), e);
+        }
     }
 
     public void addToUpdateQueue(ArbitraryTransactionData transactionData) {
@@ -147,34 +180,66 @@ public class ArbitraryDataCacheManager extends Thread {
             LOGGER.info("Building arbitrary resources cache...");
             SplashFrame.getInstance().updateStatus("Building QDN cache - please wait...");
 
-            final int batchSize = 100;
+            final int batchSize = Settings.getInstance().getBuildArbitraryResourcesBatchSize();
             int offset = 0;
 
+            List<ArbitraryTransactionData> allArbitraryTransactionsInDescendingOrder
+                    = repository.getArbitraryRepository().getLatestArbitraryTransactions();
+
+            LOGGER.info("arbitrary transactions: count = " + allArbitraryTransactionsInDescendingOrder.size());
+
+            List<ArbitraryResourceData> resources = repository.getArbitraryRepository().getArbitraryResources(null, null, true);
+
+            Map<ArbitraryTransactionDataHashWrapper, ArbitraryResourceData> resourceByWrapper = new HashMap<>(resources.size());
+            for( ArbitraryResourceData resource : resources ) {
+                resourceByWrapper.put(
+                    new ArbitraryTransactionDataHashWrapper(resource.service.value, resource.name, resource.identifier),
+                    resource
+                );
+            }
+
+            LOGGER.info("arbitrary resources: count = " + resourceByWrapper.size());
+
+            Set<ArbitraryTransactionDataHashWrapper> latestTransactionsWrapped = new HashSet<>(allArbitraryTransactionsInDescendingOrder.size());
+
             // Loop through all ARBITRARY transactions, and determine latest state
             while (!Controller.isStopping()) {
-                LOGGER.info("Fetching arbitrary transactions {} - {}", offset, offset+batchSize-1);
+                LOGGER.info(
+                    "Fetching arbitrary transactions {} - {} / {} Total",
+                    FORMATTER.format(offset),
+                    FORMATTER.format(offset+batchSize-1),
+                    FORMATTER.format(allArbitraryTransactionsInDescendingOrder.size())
+                );
 
-                List<byte[]> signatures = repository.getTransactionRepository().getSignaturesMatchingCriteria(null, null, null, List.of(Transaction.TransactionType.ARBITRARY), null, null, null, TransactionsResource.ConfirmationStatus.BOTH, batchSize, offset, false);
-                if (signatures.isEmpty()) {
+                List<ArbitraryTransactionData> transactionsToProcess
+                    = allArbitraryTransactionsInDescendingOrder.stream()
+                        .skip(offset)
+                        .limit(batchSize)
+                        .collect(Collectors.toList());
+
+                if (transactionsToProcess.isEmpty()) {
                     // Complete
                     break;
                 }
 
-                // Expand signatures to transactions
-                for (byte[] signature : signatures) {
-                    ArbitraryTransactionData transactionData = (ArbitraryTransactionData) repository
-                            .getTransactionRepository().fromSignature(signature);
+                try {
+                    for( ArbitraryTransactionData transactionData : transactionsToProcess) {
+                        if (transactionData.getService() == null) {
+                            // Unsupported service - ignore this resource
+                            continue;
+                        }
 
-                    if (transactionData.getService() == null) {
-                        // Unsupported service - ignore this resource
-                        continue;
+                        latestTransactionsWrapped.add(new ArbitraryTransactionDataHashWrapper(transactionData));
+
+                        // Update arbitrary resource caches
+                        ArbitraryTransaction arbitraryTransaction = new ArbitraryTransaction(repository, transactionData);
+                        arbitraryTransaction.updateArbitraryResourceCacheIncludingMetadata(repository, latestTransactionsWrapped, resourceByWrapper);
                     }
-
-                    // Update arbitrary resource caches
-                    ArbitraryTransaction arbitraryTransaction = new ArbitraryTransaction(repository, transactionData);
-                    arbitraryTransaction.updateArbitraryResourceCache(repository);
-                    arbitraryTransaction.updateArbitraryMetadataCache(repository);
                     repository.saveChanges();
+                } catch (DataException e) {
+                    repository.discardChanges();
+
+                    LOGGER.error(e.getMessage(), e);
                 }
                 offset += batchSize;
             }
@@ -192,6 +257,11 @@ public class ArbitraryDataCacheManager extends Thread {
             repository.discardChanges();
             throw new DataException("Build of arbitrary resources cache failed.");
         }
+        catch (Exception e) {
+            LOGGER.error(e.getMessage(), e);
+
+            return false;
+        }
     }
 
     private boolean refreshArbitraryStatuses(Repository repository) throws DataException {
@@ -199,27 +269,48 @@ public class ArbitraryDataCacheManager extends Thread {
             LOGGER.info("Refreshing arbitrary resource statuses for locally hosted transactions...");
             SplashFrame.getInstance().updateStatus("Refreshing statuses - please wait...");
 
-            final int batchSize = 100;
+            final int batchSize = Settings.getInstance().getBuildArbitraryResourcesBatchSize();
             int offset = 0;
 
+            List<ArbitraryTransactionData> allHostedTransactions
+                = ArbitraryDataStorageManager.getInstance()
+                    .listAllHostedTransactions(repository, null, null);
+
             // Loop through all ARBITRARY transactions, and determine latest state
             while (!Controller.isStopping()) {
-                LOGGER.info("Fetching hosted transactions {} - {}", offset, offset+batchSize-1);
+                LOGGER.info(
+                    "Fetching hosted transactions {} - {} / {} Total",
+                    FORMATTER.format(offset),
+                    FORMATTER.format(offset+batchSize-1),
+                    FORMATTER.format(allHostedTransactions.size())
+                );
+
+                List<ArbitraryTransactionData> hostedTransactions
+                    = allHostedTransactions.stream()
+                        .skip(offset)
+                        .limit(batchSize)
+                        .collect(Collectors.toList());
 
-                List<ArbitraryTransactionData> hostedTransactions = ArbitraryDataStorageManager.getInstance().listAllHostedTransactions(repository, batchSize, offset);
                 if (hostedTransactions.isEmpty()) {
                     // Complete
                     break;
                 }
 
-                // Loop through hosted transactions
-                for (ArbitraryTransactionData transactionData : hostedTransactions) {
+                try {
+                    // Loop through hosted transactions
+                    for (ArbitraryTransactionData transactionData : hostedTransactions) {
 
-                    // Determine status and update cache
-                    ArbitraryTransaction arbitraryTransaction = new ArbitraryTransaction(repository, transactionData);
-                    arbitraryTransaction.updateArbitraryResourceStatus(repository);
+                        // Determine status and update cache
+                        ArbitraryTransaction arbitraryTransaction = new ArbitraryTransaction(repository, transactionData);
+                        arbitraryTransaction.updateArbitraryResourceStatus(repository);
+                    }
                     repository.saveChanges();
+                } catch (DataException e) {
+                    repository.discardChanges();
+
+                    LOGGER.error(e.getMessage(), e);
                 }
+
                 offset += batchSize;
             }
 
@@ -233,6 +324,11 @@ public class ArbitraryDataCacheManager extends Thread {
             repository.discardChanges();
             throw new DataException("Refresh of arbitrary resource statuses failed.");
         }
+        catch (Exception e) {
+            LOGGER.error(e.getMessage(), e);
+
+            return false;
+        }
     }
 
 }

src/main/java/org/qortal/controller/arbitrary/ArbitraryDataCleanupManager.java

@@ -2,9 +2,10 @@ package org.qortal.controller.arbitrary;
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
-import org.qortal.api.resource.TransactionsResource.ConfirmationStatus;
 import org.qortal.data.transaction.ArbitraryTransactionData;
 import org.qortal.data.transaction.TransactionData;
+import org.qortal.event.DataMonitorEvent;
+import org.qortal.event.EventBus;
 import org.qortal.repository.DataException;
 import org.qortal.repository.Repository;
 import org.qortal.repository.RepositoryManager;
@@ -21,8 +22,12 @@ import java.nio.file.Paths;
 import java.security.SecureRandom;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.stream.Collectors;
 
 import static org.qortal.controller.arbitrary.ArbitraryDataStorageManager.DELETION_THRESHOLD;
 
@@ -71,11 +76,25 @@ public class ArbitraryDataCleanupManager extends Thread {
 	@Override
 	public void run() {
 		Thread.currentThread().setName("Arbitrary Data Cleanup Manager");
+		Thread.currentThread().setPriority(NORM_PRIORITY);
 
 		// Paginate queries when fetching arbitrary transactions
 		final int limit = 100;
 		int offset = 0;
 
+		List<ArbitraryTransactionData> allArbitraryTransactionsInDescendingOrder;
+
+		try (final Repository repository = RepositoryManager.getRepository()) {
+			allArbitraryTransactionsInDescendingOrder
+					= repository.getArbitraryRepository()
+					.getLatestArbitraryTransactions();
+		} catch( Exception e) {
+			LOGGER.error(e.getMessage(), e);
+			allArbitraryTransactionsInDescendingOrder = new ArrayList<>(0);
+		}
+
+		Set<ArbitraryTransactionData> processedTransactions = new HashSet<>();
+
 		try {
 			while (!isStopping) {
 				Thread.sleep(30000);
@@ -106,27 +125,31 @@ public class ArbitraryDataCleanupManager extends Thread {
 
 				// Any arbitrary transactions we want to fetch data for?
 				try (final Repository repository = RepositoryManager.getRepository()) {
-					List<byte[]> signatures = repository.getTransactionRepository().getSignaturesMatchingCriteria(null, null, null, ARBITRARY_TX_TYPE, null, null, null, ConfirmationStatus.BOTH, limit, offset, true);
-					// LOGGER.info("Found {} arbitrary transactions at offset: {}, limit: {}", signatures.size(), offset, limit);
+					List<ArbitraryTransactionData> transactions = allArbitraryTransactionsInDescendingOrder.stream().skip(offset).limit(limit).collect(Collectors.toList());
 					if (isStopping) {
 						return;
 					}
 
-					if (signatures == null || signatures.isEmpty()) {
+					if (transactions == null || transactions.isEmpty()) {
 						offset = 0;
-						continue;
+						allArbitraryTransactionsInDescendingOrder
+								= repository.getArbitraryRepository()
+								.getLatestArbitraryTransactions();
+						transactions = allArbitraryTransactionsInDescendingOrder.stream().limit(limit).collect(Collectors.toList());
+						processedTransactions.clear();
 					}
+
 					offset += limit;
 					now = NTP.getTime();
 
 					// Loop through the signatures in this batch
-					for (int i=0; i<signatures.size(); i++) {
+					for (int i=0; i<transactions.size(); i++) {
 						if (isStopping) {
 							return;
 						}
 
-						byte[] signature = signatures.get(i);
-						if (signature == null) {
+						ArbitraryTransactionData arbitraryTransactionData = transactions.get(i);
+						if (arbitraryTransactionData == null) {
 							continue;
 						}
 
@@ -135,9 +158,7 @@ public class ArbitraryDataCleanupManager extends Thread {
 							Thread.sleep(5000);
 						}
 
-						// Fetch the transaction data
-						ArbitraryTransactionData arbitraryTransactionData = ArbitraryTransactionUtils.fetchTransactionData(repository, signature);
-						if (arbitraryTransactionData == null || arbitraryTransactionData.getService() == null) {
+						if (arbitraryTransactionData.getService() == null) {
 							continue;
 						}
 
@@ -146,6 +167,8 @@ public class ArbitraryDataCleanupManager extends Thread {
 							continue;
 						}
 
+						boolean mostRecentTransaction = processedTransactions.add(arbitraryTransactionData);
+
 						// Check if we have the complete file
 						boolean completeFileExists = ArbitraryTransactionUtils.completeFileExists(arbitraryTransactionData);
 
@@ -166,20 +189,54 @@ public class ArbitraryDataCleanupManager extends Thread {
 							LOGGER.info("Deleting transaction {} because we can't host its data",
 									Base58.encode(arbitraryTransactionData.getSignature()));
 							ArbitraryTransactionUtils.deleteCompleteFileAndChunks(arbitraryTransactionData);
+
+							EventBus.INSTANCE.notify(
+								new DataMonitorEvent(
+									System.currentTimeMillis(),
+									arbitraryTransactionData.getIdentifier(),
+									arbitraryTransactionData.getName(),
+									arbitraryTransactionData.getService().name(),
+									"can't store data, deleting",
+									arbitraryTransactionData.getTimestamp(),
+									arbitraryTransactionData.getTimestamp()
+								)
+							);
 							continue;
 						}
 
 						// Check to see if we have had a more recent PUT
-						boolean hasMoreRecentPutTransaction = ArbitraryTransactionUtils.hasMoreRecentPutTransaction(repository, arbitraryTransactionData);
-						if (hasMoreRecentPutTransaction) {
+						if (!mostRecentTransaction) {
 							// There is a more recent PUT transaction than the one we are currently processing.
 							// When a PUT is issued, it replaces any layers that would have been there before.
 							// Therefore any data relating to this older transaction is no longer needed.
 							LOGGER.info(String.format("Newer PUT found for %s %s since transaction %s. " +
 											"Deleting all files associated with the earlier transaction.", arbitraryTransactionData.getService(),
-									arbitraryTransactionData.getName(), Base58.encode(signature)));
+									arbitraryTransactionData.getName(), Base58.encode(arbitraryTransactionData.getSignature())));
 
 							ArbitraryTransactionUtils.deleteCompleteFileAndChunks(arbitraryTransactionData);
+
+							Optional<ArbitraryTransactionData> moreRecentPutTransaction
+								= processedTransactions.stream()
+									.filter(data -> data.equals(arbitraryTransactionData))
+									.findAny();
+
+							if( moreRecentPutTransaction.isPresent() ) {
+								EventBus.INSTANCE.notify(
+									new DataMonitorEvent(
+										System.currentTimeMillis(),
+										arbitraryTransactionData.getIdentifier(),
+										arbitraryTransactionData.getName(),
+										arbitraryTransactionData.getService().name(),
+										"deleting data due to replacement",
+										arbitraryTransactionData.getTimestamp(),
+										moreRecentPutTransaction.get().getTimestamp()
+									)
+								);
+							}
+							else {
+								LOGGER.warn("Something went wrong with the most recent put transaction determination!");
+							}
+
 							continue;
 						}
 
@@ -198,7 +255,21 @@ public class ArbitraryDataCleanupManager extends Thread {
 							LOGGER.debug(String.format("Transaction %s has complete file and all chunks",
 									Base58.encode(arbitraryTransactionData.getSignature())));
 
-							ArbitraryTransactionUtils.deleteCompleteFile(arbitraryTransactionData, now, STALE_FILE_TIMEOUT);
+							boolean wasDeleted = ArbitraryTransactionUtils.deleteCompleteFile(arbitraryTransactionData, now, STALE_FILE_TIMEOUT);
+
+							if( wasDeleted ) {
+								EventBus.INSTANCE.notify(
+									new DataMonitorEvent(
+										System.currentTimeMillis(),
+										arbitraryTransactionData.getIdentifier(),
+										arbitraryTransactionData.getName(),
+										arbitraryTransactionData.getService().name(),
+										"deleting file, retaining chunks",
+										arbitraryTransactionData.getTimestamp(),
+										arbitraryTransactionData.getTimestamp()
+									)
+								);
+							}
 							continue;
 						}
 
@@ -236,17 +307,6 @@ public class ArbitraryDataCleanupManager extends Thread {
 						this.storageLimitReached(repository);
 					}
 
-					// Delete random data associated with name if we're over our storage limit for this name
-					// Use the DELETION_THRESHOLD, for the same reasons as above
-					for (String followedName : ListUtils.followedNames()) {
-						if (isStopping) {
-							return;
-						}
-						if (!storageManager.isStorageSpaceAvailableForName(repository, followedName, DELETION_THRESHOLD)) {
-							this.storageLimitReachedForName(repository, followedName);
-						}
-					}
-
 				} catch (DataException e) {
 					LOGGER.error("Repository issue when cleaning up arbitrary transaction data", e);
 				}
@@ -325,25 +385,6 @@ public class ArbitraryDataCleanupManager extends Thread {
 		// FUTURE: consider reducing the expiry time of the reader cache
 	}
 
-	public void storageLimitReachedForName(Repository repository, String name) throws InterruptedException {
-		// We think that the storage limit has been reached for supplied name - but we should double check
-		if (ArbitraryDataStorageManager.getInstance().isStorageSpaceAvailableForName(repository, name, DELETION_THRESHOLD)) {
-			// We have space available for this name, so don't delete anything
-			return;
-		}
-
-		// Delete a batch of random chunks associated with this name
-		// This reduces the chance of too many nodes deleting the same chunk
-		// when they reach their storage limit
-		Path dataPath = Paths.get(Settings.getInstance().getDataPath());
-		for (int i=0; i<CHUNK_DELETION_BATCH_SIZE; i++) {
-			if (isStopping) {
-				return;
-			}
-			this.deleteRandomFile(repository, dataPath.toFile(), name);
-		}
-	}
-
 	/**
 	 * Iteratively walk through given directory and delete a single random file
 	 *
@@ -422,6 +463,7 @@ public class ArbitraryDataCleanupManager extends Thread {
 				}
 
 				LOGGER.info("Deleting random file {} because we have reached max storage capacity...", randomItem.toString());
+				fireRandomItemDeletionNotification(randomItem, repository, "Deleting random file, because we have reached max storage capacity");
 				boolean success = randomItem.delete();
 				if (success) {
 					try {
@@ -436,6 +478,35 @@ public class ArbitraryDataCleanupManager extends Thread {
 		return false;
 	}
 
+	private void fireRandomItemDeletionNotification(File randomItem, Repository repository, String reason) {
+		try {
+			Path parentFileNamePath = randomItem.toPath().toAbsolutePath().getParent().getFileName();
+			if (parentFileNamePath != null) {
+				String signature58 = parentFileNamePath.toString();
+				byte[] signature = Base58.decode(signature58);
+				TransactionData transactionData = repository.getTransactionRepository().fromSignature(signature);
+				if (transactionData != null && transactionData.getType() == Transaction.TransactionType.ARBITRARY) {
+					ArbitraryTransactionData arbitraryTransactionData = (ArbitraryTransactionData) transactionData;
+
+					EventBus.INSTANCE.notify(
+						new DataMonitorEvent(
+							System.currentTimeMillis(),
+							arbitraryTransactionData.getIdentifier(),
+							arbitraryTransactionData.getName(),
+							arbitraryTransactionData.getService().name(),
+							reason,
+							arbitraryTransactionData.getTimestamp(),
+							arbitraryTransactionData.getTimestamp()
+						)
+					);
+				}
+			}
+
+		} catch (Exception e) {
+			LOGGER.error(e.getMessage(), e);
+		}
+	}
+
 	private void cleanupTempDirectory(String folder, long now, long minAge) {
 		String baseDir = Settings.getInstance().getTempDataPath();
 		Path tempDir = Paths.get(baseDir, folder);

src/main/java/org/qortal/controller/arbitrary/ArbitraryDataExamination.java

@@ -0,0 +1,21 @@
+package org.qortal.controller.arbitrary;
+
+public class ArbitraryDataExamination {
+
+    private boolean pass;
+
+    private String notes;
+
+    public ArbitraryDataExamination(boolean pass, String notes) {
+        this.pass = pass;
+        this.notes = notes;
+    }
+
+    public boolean isPass() {
+        return pass;
+    }
+
+    public String getNotes() {
+        return notes;
+    }
+}

src/main/java/org/qortal/controller/arbitrary/ArbitraryDataFileRequestThread.java

@@ -5,6 +5,8 @@ import org.apache.logging.log4j.Logger;
 import org.qortal.controller.Controller;
 import org.qortal.data.arbitrary.ArbitraryFileListResponseInfo;
 import org.qortal.data.transaction.ArbitraryTransactionData;
+import org.qortal.event.DataMonitorEvent;
+import org.qortal.event.EventBus;
 import org.qortal.network.Peer;
 import org.qortal.repository.DataException;
 import org.qortal.repository.Repository;
@@ -17,6 +19,8 @@ import java.util.Arrays;
 import java.util.Comparator;
 import java.util.Iterator;
 
+import static java.lang.Thread.NORM_PRIORITY;
+
 public class ArbitraryDataFileRequestThread implements Runnable {
 
     private static final Logger LOGGER = LogManager.getLogger(ArbitraryDataFileRequestThread.class);
@@ -28,6 +32,7 @@ public class ArbitraryDataFileRequestThread implements Runnable {
     @Override
     public void run() {
         Thread.currentThread().setName("Arbitrary Data File Request Thread");
+        Thread.currentThread().setPriority(NORM_PRIORITY);
 
         try {
             while (!Controller.isStopping()) {

src/main/java/org/qortal/controller/arbitrary/ArbitraryDataManager.java

@@ -10,6 +10,8 @@ import org.qortal.arbitrary.misc.Service;
 import org.qortal.controller.Controller;
 import org.qortal.data.transaction.ArbitraryTransactionData;
 import org.qortal.data.transaction.TransactionData;
+import org.qortal.event.DataMonitorEvent;
+import org.qortal.event.EventBus;
 import org.qortal.network.Network;
 import org.qortal.network.Peer;
 import org.qortal.repository.DataException;
@@ -28,6 +30,7 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.*;
+import java.util.stream.Collectors;
 
 public class ArbitraryDataManager extends Thread {
 
@@ -91,6 +94,7 @@ public class ArbitraryDataManager extends Thread {
 	@Override
 	public void run() {
 		Thread.currentThread().setName("Arbitrary Data Manager");
+		Thread.currentThread().setPriority(NORM_PRIORITY);
 
 		// Create data directory in case it doesn't exist yet
 		this.createDataDirectory();
@@ -194,13 +198,35 @@ public class ArbitraryDataManager extends Thread {
 		final int limit = 100;
 		int offset = 0;
 
+		List<ArbitraryTransactionData> allArbitraryTransactionsInDescendingOrder;
+
+		try (final Repository repository = RepositoryManager.getRepository()) {
+
+			if( name == null ) {
+				allArbitraryTransactionsInDescendingOrder
+						= repository.getArbitraryRepository()
+						.getLatestArbitraryTransactions();
+			}
+			else {
+				allArbitraryTransactionsInDescendingOrder
+						= repository.getArbitraryRepository()
+						.getLatestArbitraryTransactionsByName(name);
+			}
+		} catch( Exception e) {
+			LOGGER.error(e.getMessage(), e);
+			allArbitraryTransactionsInDescendingOrder = new ArrayList<>(0);
+		}
+
+		// collect processed transactions in a set to ensure outdated data transactions do not get fetched
+		Set<ArbitraryTransactionDataHashWrapper> processedTransactions = new HashSet<>();
+
 		while (!isStopping) {
 			Thread.sleep(1000L);
 
 			// Any arbitrary transactions we want to fetch data for?
 			try (final Repository repository = RepositoryManager.getRepository()) {
-				List<byte[]> signatures = repository.getTransactionRepository().getSignaturesMatchingCriteria(null, null, null, ARBITRARY_TX_TYPE, null, name, null, ConfirmationStatus.BOTH, limit, offset, true);
-				// LOGGER.trace("Found {} arbitrary transactions at offset: {}, limit: {}", signatures.size(), offset, limit);
+				List<byte[]> signatures = processTransactionsForSignatures(limit, offset, allArbitraryTransactionsInDescendingOrder, processedTransactions);
+
 				if (signatures == null || signatures.isEmpty()) {
 					offset = 0;
 					break;
@@ -222,14 +248,38 @@ public class ArbitraryDataManager extends Thread {
 					ArbitraryTransactionData arbitraryTransactionData = (ArbitraryTransactionData) arbitraryTransaction.getTransactionData();
 
 					// Skip transactions that we don't need to proactively store data for
-					if (!storageManager.shouldPreFetchData(repository, arbitraryTransactionData)) {
+					ArbitraryDataExamination arbitraryDataExamination = storageManager.shouldPreFetchData(repository, arbitraryTransactionData);
+					if (!arbitraryDataExamination.isPass()) {
 						iterator.remove();
+
+						EventBus.INSTANCE.notify(
+							new DataMonitorEvent(
+								System.currentTimeMillis(),
+								arbitraryTransactionData.getIdentifier(),
+								arbitraryTransactionData.getName(),
+								arbitraryTransactionData.getService().name(),
+								arbitraryDataExamination.getNotes(),
+								arbitraryTransactionData.getTimestamp(),
+								arbitraryTransactionData.getTimestamp()
+							)
+						);
 						continue;
 					}
 
 					// Remove transactions that we already have local data for
 					if (hasLocalData(arbitraryTransaction)) {
 						iterator.remove();
+						EventBus.INSTANCE.notify(
+							new DataMonitorEvent(
+								System.currentTimeMillis(),
+								arbitraryTransactionData.getIdentifier(),
+								arbitraryTransactionData.getName(),
+								arbitraryTransactionData.getService().name(),
+								"already have local data, skipping",
+								arbitraryTransactionData.getTimestamp(),
+								arbitraryTransactionData.getTimestamp()
+							)
+						);
                     }
 				}
 
@@ -247,8 +297,21 @@ public class ArbitraryDataManager extends Thread {
 
 				// Check to see if we have had a more recent PUT
 				ArbitraryTransactionData arbitraryTransactionData = ArbitraryTransactionUtils.fetchTransactionData(repository, signature);
-				boolean hasMoreRecentPutTransaction = ArbitraryTransactionUtils.hasMoreRecentPutTransaction(repository, arbitraryTransactionData);
-				if (hasMoreRecentPutTransaction) {
+
+				Optional<ArbitraryTransactionData> moreRecentPutTransaction = ArbitraryTransactionUtils.hasMoreRecentPutTransaction(repository, arbitraryTransactionData);
+
+				if (moreRecentPutTransaction.isPresent()) {
+					EventBus.INSTANCE.notify(
+						new DataMonitorEvent(
+							System.currentTimeMillis(),
+							arbitraryTransactionData.getIdentifier(),
+							arbitraryTransactionData.getName(),
+							arbitraryTransactionData.getService().name(),
+							"not fetching old data",
+							arbitraryTransactionData.getTimestamp(),
+							moreRecentPutTransaction.get().getTimestamp()
+						)
+					);
 					// There is a more recent PUT transaction than the one we are currently processing.
 					// When a PUT is issued, it replaces any layers that would have been there before.
 					// Therefore any data relating to this older transaction is no longer needed and we
@@ -256,10 +319,34 @@ public class ArbitraryDataManager extends Thread {
 					continue;
 				}
 
+				EventBus.INSTANCE.notify(
+					new DataMonitorEvent(
+						System.currentTimeMillis(),
+						arbitraryTransactionData.getIdentifier(),
+						arbitraryTransactionData.getName(),
+						arbitraryTransactionData.getService().name(),
+						"fetching data",
+						arbitraryTransactionData.getTimestamp(),
+						arbitraryTransactionData.getTimestamp()
+					)
+				);
+
 				// Ask our connected peers if they have files for this signature
 				// This process automatically then fetches the files themselves if a peer is found
 				fetchData(arbitraryTransactionData);
 
+				EventBus.INSTANCE.notify(
+					new DataMonitorEvent(
+						System.currentTimeMillis(),
+						arbitraryTransactionData.getIdentifier(),
+						arbitraryTransactionData.getName(),
+						arbitraryTransactionData.getService().name(),
+						"fetched data",
+						arbitraryTransactionData.getTimestamp(),
+						arbitraryTransactionData.getTimestamp()
+					)
+				);
+
 			} catch (DataException e) {
 				LOGGER.error("Repository issue when fetching arbitrary transaction data", e);
 			}
@@ -273,6 +360,20 @@ public class ArbitraryDataManager extends Thread {
 		final int limit = 100;
 		int offset = 0;
 
+		List<ArbitraryTransactionData> allArbitraryTransactionsInDescendingOrder;
+
+		try (final Repository repository = RepositoryManager.getRepository()) {
+			allArbitraryTransactionsInDescendingOrder
+					= repository.getArbitraryRepository()
+						.getLatestArbitraryTransactions();
+		} catch( Exception e) {
+			LOGGER.error(e.getMessage(), e);
+			allArbitraryTransactionsInDescendingOrder = new ArrayList<>(0);
+		}
+
+		// collect processed transactions in a set to ensure outdated data transactions do not get fetched
+		Set<ArbitraryTransactionDataHashWrapper> processedTransactions = new HashSet<>();
+
 		while (!isStopping) {
 			final int minSeconds = 3;
 			final int maxSeconds = 10;
@@ -281,8 +382,8 @@ public class ArbitraryDataManager extends Thread {
 
 			// Any arbitrary transactions we want to fetch data for?
 			try (final Repository repository = RepositoryManager.getRepository()) {
-				List<byte[]> signatures = repository.getTransactionRepository().getSignaturesMatchingCriteria(null, null, null, ARBITRARY_TX_TYPE, null, null, null, ConfirmationStatus.BOTH, limit, offset, true);
-				// LOGGER.trace("Found {} arbitrary transactions at offset: {}, limit: {}", signatures.size(), offset, limit);
+				List<byte[]> signatures = processTransactionsForSignatures(limit, offset, allArbitraryTransactionsInDescendingOrder, processedTransactions);
+
 				if (signatures == null || signatures.isEmpty()) {
 					offset = 0;
 					break;
@@ -327,26 +428,74 @@ public class ArbitraryDataManager extends Thread {
 					continue;
 				}
 
-				// Check to see if we have had a more recent PUT
+				// No longer need to see if we have had a more recent PUT since we compared the transactions to process
+				// to the transactions previously processed, so we can fetch the transactiondata, notify the event bus,
+				// fetch the metadata and notify the event bus again
 				ArbitraryTransactionData arbitraryTransactionData = ArbitraryTransactionUtils.fetchTransactionData(repository, signature);
-				boolean hasMoreRecentPutTransaction = ArbitraryTransactionUtils.hasMoreRecentPutTransaction(repository, arbitraryTransactionData);
-				if (hasMoreRecentPutTransaction) {
-					// There is a more recent PUT transaction than the one we are currently processing.
-					// When a PUT is issued, it replaces any layers that would have been there before.
-					// Therefore any data relating to this older transaction is no longer needed and we
-					// shouldn't fetch it from the network.
-					continue;
-				}
 
 				// Ask our connected peers if they have metadata for this signature
 				fetchMetadata(arbitraryTransactionData);
 
+				EventBus.INSTANCE.notify(
+					new DataMonitorEvent(
+						System.currentTimeMillis(),
+						arbitraryTransactionData.getIdentifier(),
+						arbitraryTransactionData.getName(),
+						arbitraryTransactionData.getService().name(),
+						"fetched metadata",
+						arbitraryTransactionData.getTimestamp(),
+						arbitraryTransactionData.getTimestamp()
+					)
+				);
 			} catch (DataException e) {
 				LOGGER.error("Repository issue when fetching arbitrary transaction data", e);
+			} catch (Exception e) {
+				LOGGER.error(e.getMessage(), e);
 			}
 		}
 	}
 
+	private static List<byte[]> processTransactionsForSignatures(
+			int limit,
+			int offset,
+			List<ArbitraryTransactionData> transactionsInDescendingOrder,
+			Set<ArbitraryTransactionDataHashWrapper> processedTransactions) {
+		// these transactions are in descending order, latest transactions come first
+		List<ArbitraryTransactionData> transactions
+				= transactionsInDescendingOrder.stream()
+					.skip(offset)
+					.limit(limit)
+					.collect(Collectors.toList());
+
+		// wrap the transactions, so they can be used for hashing and comparing
+		// Class ArbitraryTransactionDataHashWrapper supports hashCode() and equals(...) for this purpose
+		List<ArbitraryTransactionDataHashWrapper> wrappedTransactions
+				= transactions.stream()
+					.map(transaction -> new ArbitraryTransactionDataHashWrapper(transaction))
+					.collect(Collectors.toList());
+
+		// create a set of wrappers and populate it first to last, so that all outdated transactions get rejected
+		Set<ArbitraryTransactionDataHashWrapper> transactionsToProcess = new HashSet<>(wrappedTransactions.size());
+		for(ArbitraryTransactionDataHashWrapper wrappedTransaction : wrappedTransactions) {
+			transactionsToProcess.add(wrappedTransaction);
+		}
+
+		// remove the matches for previously processed transactions,
+		// because these transactions have had updates that have already been processed
+		transactionsToProcess.removeAll(processedTransactions);
+
+		// add to processed transactions to compare and remove matches from future processing iterations
+		processedTransactions.addAll(transactionsToProcess);
+
+		List<byte[]> signatures
+				= transactionsToProcess.stream()
+					.map(transactionToProcess -> transactionToProcess.getData()
+					.getSignature())
+					.collect(Collectors.toList());
+
+		return signatures;
+	}
+
 	private ArbitraryTransaction fetchTransaction(final Repository repository, byte[] signature) {
 		try {
 			TransactionData transactionData = repository.getTransactionRepository().fromSignature(signature);

src/main/java/org/qortal/controller/arbitrary/ArbitraryDataRenderManager.java

@@ -36,6 +36,7 @@ public class ArbitraryDataRenderManager extends Thread {
     @Override
     public void run() {
         Thread.currentThread().setName("Arbitrary Data Render Manager");
+        Thread.currentThread().setPriority(NORM_PRIORITY);
 
         try {
             while (!isStopping) {

src/main/java/org/qortal/controller/arbitrary/ArbitraryDataStorageManager.java

@@ -72,6 +72,8 @@ public class ArbitraryDataStorageManager extends Thread {
     @Override
     public void run() {
         Thread.currentThread().setName("Arbitrary Data Storage Manager");
+        Thread.currentThread().setPriority(NORM_PRIORITY);
+
         try {
             while (!isStopping) {
                 Thread.sleep(1000);
@@ -153,31 +155,24 @@ public class ArbitraryDataStorageManager extends Thread {
      * @param arbitraryTransactionData - the transaction
      * @return boolean - whether to prefetch or not
      */
-    public boolean shouldPreFetchData(Repository repository, ArbitraryTransactionData arbitraryTransactionData) {
+    public ArbitraryDataExamination shouldPreFetchData(Repository repository, ArbitraryTransactionData arbitraryTransactionData) {
         String name = arbitraryTransactionData.getName();
 
         // Only fetch data associated with hashes, as we already have RAW_DATA
         if (arbitraryTransactionData.getDataType() != ArbitraryTransactionData.DataType.DATA_HASH) {
-            return false;
+            return new ArbitraryDataExamination(false, "Only fetch data associated with hashes");
         }
 
         // Don't fetch anything more if we're (nearly) out of space
         // Make sure to keep STORAGE_FULL_THRESHOLD considerably less than 1, to
         // avoid a fetch/delete loop
         if (!this.isStorageSpaceAvailable(STORAGE_FULL_THRESHOLD)) {
-            return false;
-        }
-
-        // Don't fetch anything if we're (nearly) out of space for this name
-        // Again, make sure to keep STORAGE_FULL_THRESHOLD considerably less than 1, to
-        // avoid a fetch/delete loop
-        if (!this.isStorageSpaceAvailableForName(repository, arbitraryTransactionData.getName(), STORAGE_FULL_THRESHOLD)) {
-            return false;
+            return new ArbitraryDataExamination(false,"Don't fetch anything more if we're (nearly) out of space");
         }
 
         // Don't store data unless it's an allowed type (public/private)
         if (!this.isDataTypeAllowed(arbitraryTransactionData)) {
-            return false;
+            return new ArbitraryDataExamination(false, "Don't store data unless it's an allowed type (public/private)");
         }
 
         // Handle transactions without names differently
@@ -187,21 +182,21 @@ public class ArbitraryDataStorageManager extends Thread {
 
         // Never fetch data from blocked names, even if they are followed
         if (ListUtils.isNameBlocked(name)) {
-            return false;
+            return new ArbitraryDataExamination(false, "blocked name");
         }
 
         switch (Settings.getInstance().getStoragePolicy()) {
             case FOLLOWED:
             case FOLLOWED_OR_VIEWED:
-                return ListUtils.isFollowingName(name);
+                return new ArbitraryDataExamination(ListUtils.isFollowingName(name), Settings.getInstance().getStoragePolicy().name());
                 
             case ALL:
-                return true;
+                return new ArbitraryDataExamination(true, Settings.getInstance().getStoragePolicy().name());
 
             case NONE:
             case VIEWED:
             default:
-                return false;
+                return new ArbitraryDataExamination(false, Settings.getInstance().getStoragePolicy().name());
         }
     }
 
@@ -212,17 +207,17 @@ public class ArbitraryDataStorageManager extends Thread {
      *
      * @return boolean - whether the storage policy allows for unnamed data
      */
-    private boolean shouldPreFetchDataWithoutName() {
+    private ArbitraryDataExamination shouldPreFetchDataWithoutName() {
         switch (Settings.getInstance().getStoragePolicy()) {
             case ALL:
-                return true;
+                return new ArbitraryDataExamination(true, "Fetching all data");
 
             case NONE:
             case VIEWED:
             case FOLLOWED:
             case FOLLOWED_OR_VIEWED:
             default:
-                return false;
+                return new ArbitraryDataExamination(false, Settings.getInstance().getStoragePolicy().name());
         }
     }
 
@@ -482,51 +477,6 @@ public class ArbitraryDataStorageManager extends Thread {
         return true;
     }
 
-    public boolean isStorageSpaceAvailableForName(Repository repository, String name, double threshold) {
-        if (!this.isStorageSpaceAvailable(threshold)) {
-            // No storage space available at all, so no need to check this name
-            return false;
-        }
-
-        if (Settings.getInstance().getStoragePolicy() == StoragePolicy.ALL) {
-            // Using storage policy ALL, so don't limit anything per name
-            return true;
-        }
-
-        if (name == null) {
-            // This transaction doesn't have a name, so fall back to total space limitations
-            return true;
-        }
-
-        int followedNamesCount = ListUtils.followedNamesCount();
-        if (followedNamesCount == 0) {
-            // Not following any names, so we have space
-            return true;
-        }
-
-        long totalSizeForName = 0;
-        long maxStoragePerName = this.storageCapacityPerName(threshold);
-
-        // Fetch all hosted transactions
-        List<ArbitraryTransactionData> hostedTransactions = this.listAllHostedTransactions(repository, null, null);
-        for (ArbitraryTransactionData transactionData : hostedTransactions) {
-            String transactionName = transactionData.getName();
-            if (!Objects.equals(name, transactionName)) {
-                // Transaction relates to a different name
-                continue;
-            }
-
-            totalSizeForName += transactionData.getSize();
-        }
-
-        // Have we reached the limit for this name?
-        if (totalSizeForName > maxStoragePerName) {
-            return false;
-        }
-
-        return true;
-    }
-
     public long storageCapacityPerName(double threshold) {
         int followedNamesCount = ListUtils.followedNamesCount();
         if (followedNamesCount == 0) {

src/main/java/org/qortal/controller/arbitrary/ArbitraryTransactionDataHashWrapper.java

@@ -0,0 +1,48 @@
+package org.qortal.controller.arbitrary;
+
+import org.qortal.arbitrary.misc.Service;
+import org.qortal.data.transaction.ArbitraryTransactionData;
+
+import java.util.Objects;
+
+public class ArbitraryTransactionDataHashWrapper {
+
+    private ArbitraryTransactionData data;
+
+    private int service;
+
+    private String name;
+
+    private String identifier;
+
+    public ArbitraryTransactionDataHashWrapper(ArbitraryTransactionData data) {
+        this.data = data;
+
+        this.service = data.getService().value;
+        this.name = data.getName();
+        this.identifier = data.getIdentifier();
+    }
+
+    public ArbitraryTransactionDataHashWrapper(int service, String name, String identifier) {
+        this.service = service;
+        this.name = name;
+        this.identifier = identifier;
+    }
+
+    public ArbitraryTransactionData getData() {
+        return data;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        ArbitraryTransactionDataHashWrapper that = (ArbitraryTransactionDataHashWrapper) o;
+        return service == that.service && name.equals(that.name) && Objects.equals(identifier, that.identifier);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(service, name, identifier);
+    }
+}

src/main/java/org/qortal/controller/arbitrary/RebuildArbitraryResourceCacheTask.java

@@ -0,0 +1,33 @@
+package org.qortal.controller.arbitrary;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.qortal.repository.DataException;
+import org.qortal.repository.Repository;
+import org.qortal.repository.RepositoryManager;
+
+import java.util.TimerTask;
+
+public class RebuildArbitraryResourceCacheTask extends TimerTask {
+
+    private static final Logger LOGGER = LogManager.getLogger(RebuildArbitraryResourceCacheTask.class);
+
+    public static final long MILLIS_IN_HOUR = 60 * 60 * 1000;
+
+    public static final long MILLIS_IN_MINUTE = 60 * 1000;
+
+    private static final String REBUILD_ARBITRARY_RESOURCE_CACHE_TASK = "Rebuild Arbitrary Resource Cache Task";
+
+    @Override
+    public void run() {
+
+        Thread.currentThread().setName(REBUILD_ARBITRARY_RESOURCE_CACHE_TASK);
+
+        try (final Repository repository = RepositoryManager.getRepository()) {
+            ArbitraryDataCacheManager.getInstance().buildArbitraryResourcesCache(repository, true);
+        }
+        catch( DataException e ) {
+            LOGGER.error(e.getMessage(), e);
+        }
+    }
+}

src/main/java/org/qortal/controller/hsqldb/HSQLDBBalanceRecorder.java

@@ -0,0 +1,139 @@
+package org.qortal.controller.hsqldb;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.apache.logging.log4j.util.PropertySource;
+import org.qortal.data.account.AccountBalanceData;
+import org.qortal.data.account.BlockHeightRange;
+import org.qortal.data.account.BlockHeightRangeAddressAmounts;
+import org.qortal.repository.hsqldb.HSQLDBCacheUtils;
+import org.qortal.settings.Settings;
+import org.qortal.utils.BalanceRecorderUtils;
+
+import java.util.Comparator;
+import java.util.List;
+import java.util.Optional;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.stream.Collectors;
+
+public class HSQLDBBalanceRecorder extends Thread{
+
+    private static final Logger LOGGER = LogManager.getLogger(HSQLDBBalanceRecorder.class);
+
+    private static HSQLDBBalanceRecorder SINGLETON = null;
+
+    private ConcurrentHashMap<Integer, List<AccountBalanceData>> balancesByHeight = new ConcurrentHashMap<>();
+
+    private ConcurrentHashMap<String, List<AccountBalanceData>> balancesByAddress = new ConcurrentHashMap<>();
+
+    private CopyOnWriteArrayList<BlockHeightRangeAddressAmounts> balanceDynamics = new CopyOnWriteArrayList<>();
+
+    private int priorityRequested;
+    private int frequency;
+    private int capacity;
+
+    private HSQLDBBalanceRecorder( int priorityRequested, int frequency, int capacity) {
+
+        super("Balance Recorder");
+
+        this.priorityRequested = priorityRequested;
+        this.frequency = frequency;
+        this.capacity = capacity;
+    }
+
+    public static Optional<HSQLDBBalanceRecorder> getInstance() {
+
+        if( SINGLETON == null ) {
+
+            SINGLETON
+                = new HSQLDBBalanceRecorder(
+                    Settings.getInstance().getBalanceRecorderPriority(),
+                    Settings.getInstance().getBalanceRecorderFrequency(),
+                    Settings.getInstance().getBalanceRecorderCapacity()
+            );
+
+        }
+        else if( SINGLETON == null ) {
+
+            return Optional.empty();
+        }
+
+        return Optional.of(SINGLETON);
+    }
+
+    @Override
+    public void run() {
+
+        Thread.currentThread().setName("Balance Recorder");
+
+        HSQLDBCacheUtils.startRecordingBalances(this.balancesByHeight, this.balanceDynamics, this.priorityRequested, this.frequency, this.capacity);
+    }
+
+    public List<BlockHeightRangeAddressAmounts> getLatestDynamics(int limit, long offset) {
+
+        List<BlockHeightRangeAddressAmounts> latest = this.balanceDynamics.stream()
+                .sorted(BalanceRecorderUtils.BLOCK_HEIGHT_RANGE_ADDRESS_AMOUNTS_COMPARATOR.reversed())
+                .skip(offset)
+                .limit(limit)
+                .collect(Collectors.toList());
+
+        return latest;
+    }
+
+    public List<BlockHeightRange> getRanges(Integer offset, Integer limit, Boolean reverse) {
+
+        if( reverse ) {
+            return this.balanceDynamics.stream()
+                    .map(BlockHeightRangeAddressAmounts::getRange)
+                    .sorted(BalanceRecorderUtils.BLOCK_HEIGHT_RANGE_COMPARATOR.reversed())
+                    .skip(offset)
+                    .limit(limit)
+                    .collect(Collectors.toList());
+        }
+        else {
+            return this.balanceDynamics.stream()
+                    .map(BlockHeightRangeAddressAmounts::getRange)
+                    .sorted(BalanceRecorderUtils.BLOCK_HEIGHT_RANGE_COMPARATOR)
+                    .skip(offset)
+                    .limit(limit)
+                    .collect(Collectors.toList());
+        }
+    }
+
+    public Optional<BlockHeightRangeAddressAmounts> getAddressAmounts(BlockHeightRange range) {
+
+        return this.balanceDynamics.stream()
+            .filter( dynamic -> dynamic.getRange().equals(range))
+            .findAny();
+    }
+
+    public Optional<BlockHeightRange> getRange( int height ) {
+        return this.balanceDynamics.stream()
+            .map(BlockHeightRangeAddressAmounts::getRange)
+            .filter( range -> range.getBegin() < height && range.getEnd() >= height )
+            .findAny();
+    }
+
+    private Optional<Integer> getLastHeight() {
+        return this.balancesByHeight.keySet().stream().sorted(Comparator.reverseOrder()).findFirst();
+    }
+
+    public List<Integer> getBlocksRecorded() {
+
+        return this.balancesByHeight.keySet().stream().collect(Collectors.toList());
+    }
+
+    public List<AccountBalanceData> getAccountBalanceRecordings(String address) {
+        return this.balancesByAddress.get(address);
+    }
+
+    @Override
+    public String toString() {
+        return "HSQLDBBalanceRecorder{" +
+                "priorityRequested=" + priorityRequested +
+                ", frequency=" + frequency +
+                ", capacity=" + capacity +
+                '}';
+    }
+}

src/main/java/org/qortal/controller/hsqldb/HSQLDBDataCacheManager.java

@@ -0,0 +1,22 @@
+package org.qortal.controller.hsqldb;
+
+import org.qortal.data.arbitrary.ArbitraryResourceCache;
+import org.qortal.repository.RepositoryManager;
+import org.qortal.repository.hsqldb.HSQLDBCacheUtils;
+import org.qortal.repository.hsqldb.HSQLDBRepository;
+import org.qortal.settings.Settings;
+
+public class HSQLDBDataCacheManager extends Thread{
+
+    public HSQLDBDataCacheManager() {}
+
+    @Override
+    public void run() {
+        Thread.currentThread().setName("HSQLDB Data Cache Manager");
+
+        HSQLDBCacheUtils.startCaching(
+            Settings.getInstance().getDbCacheThreadPriority(),
+            Settings.getInstance().getDbCacheFrequency()
+        );
+    }
+}

src/main/java/org/qortal/controller/repository/AtStatesPruner.java

@@ -11,6 +11,8 @@ import org.qortal.repository.RepositoryManager;
 import org.qortal.settings.Settings;
 import org.qortal.utils.NTP;
 
+import static java.lang.Thread.MIN_PRIORITY;
+
 public class AtStatesPruner implements Runnable {
 
 	private static final Logger LOGGER = LogManager.getLogger(AtStatesPruner.class);
@@ -37,82 +39,97 @@ public class AtStatesPruner implements Runnable {
 			}
 		}
 
+		int pruneStartHeight;
+		int maxLatestAtStatesHeight;
+
 		try (final Repository repository = RepositoryManager.getRepository()) {
-			int pruneStartHeight = repository.getATRepository().getAtPruneHeight();
-			int maxLatestAtStatesHeight = PruneManager.getMaxHeightForLatestAtStates(repository);
+			pruneStartHeight = repository.getATRepository().getAtPruneHeight();
+			maxLatestAtStatesHeight = PruneManager.getMaxHeightForLatestAtStates(repository);
 
 			repository.discardChanges();
 			repository.getATRepository().rebuildLatestAtStates(maxLatestAtStatesHeight);
 			repository.saveChanges();
+		} catch (Exception e) {
+			LOGGER.error("AT States Pruning is not working! Not trying again. Restart ASAP. Report this error immediately to the developers.", e);
+			return;
+		}
 
-			while (!Controller.isStopping()) {
-				repository.discardChanges();
+		while (!Controller.isStopping()) {
+			try (final Repository repository = RepositoryManager.getRepository()) {
 
-				Thread.sleep(Settings.getInstance().getAtStatesPruneInterval());
+				try {
+					repository.discardChanges();
 
-				BlockData chainTip = Controller.getInstance().getChainTip();
-				if (chainTip == null || NTP.getTime() == null)
-					continue;
+					Thread.sleep(Settings.getInstance().getAtStatesPruneInterval());
 
-				// Don't even attempt if we're mid-sync as our repository requests will be delayed for ages
-				if (Synchronizer.getInstance().isSynchronizing())
-					continue;
+					BlockData chainTip = Controller.getInstance().getChainTip();
+					if (chainTip == null || NTP.getTime() == null)
+						continue;
 
-				// Prune AT states for all blocks up until our latest minus pruneBlockLimit
-				final int ourLatestHeight = chainTip.getHeight();
-				int upperPrunableHeight = ourLatestHeight - Settings.getInstance().getPruneBlockLimit();
+					// Don't even attempt if we're mid-sync as our repository requests will be delayed for ages
+					if (Synchronizer.getInstance().isSynchronizing())
+						continue;
 
-				// In archive mode we are only allowed to trim blocks that have already been archived
-				if (archiveMode) {
-					upperPrunableHeight = repository.getBlockArchiveRepository().getBlockArchiveHeight() - 1;
+					// Prune AT states for all blocks up until our latest minus pruneBlockLimit
+					final int ourLatestHeight = chainTip.getHeight();
+					int upperPrunableHeight = ourLatestHeight - Settings.getInstance().getPruneBlockLimit();
 
-					// TODO: validate that the actual archived data exists before pruning it?
-				}
+					// In archive mode we are only allowed to trim blocks that have already been archived
+					if (archiveMode) {
+						upperPrunableHeight = repository.getBlockArchiveRepository().getBlockArchiveHeight() - 1;
 
-				int upperBatchHeight = pruneStartHeight + Settings.getInstance().getAtStatesPruneBatchSize();
-				int upperPruneHeight = Math.min(upperBatchHeight, upperPrunableHeight);
+						// TODO: validate that the actual archived data exists before pruning it?
+					}
 
-				if (pruneStartHeight >= upperPruneHeight)
-					continue;
+					int upperBatchHeight = pruneStartHeight + Settings.getInstance().getAtStatesPruneBatchSize();
+					int upperPruneHeight = Math.min(upperBatchHeight, upperPrunableHeight);
 
-				LOGGER.debug(String.format("Pruning AT states between blocks %d and %d...", pruneStartHeight, upperPruneHeight));
+					if (pruneStartHeight >= upperPruneHeight)
+						continue;
 
-				int numAtStatesPruned = repository.getATRepository().pruneAtStates(pruneStartHeight, upperPruneHeight);
-				repository.saveChanges();
-				int numAtStateDataRowsTrimmed = repository.getATRepository().trimAtStates(
-						pruneStartHeight, upperPruneHeight, Settings.getInstance().getAtStatesTrimLimit());
-				repository.saveChanges();
+					LOGGER.info(String.format("Pruning AT states between blocks %d and %d...", pruneStartHeight, upperPruneHeight));
 
-				if (numAtStatesPruned > 0 || numAtStateDataRowsTrimmed > 0) {
-					final int finalPruneStartHeight = pruneStartHeight;
-					LOGGER.debug(() -> String.format("Pruned %d AT state%s between blocks %d and %d",
-							numAtStatesPruned, (numAtStatesPruned != 1 ? "s" : ""),
-							finalPruneStartHeight, upperPruneHeight));
-				} else {
-					// Can we move onto next batch?
-					if (upperPrunableHeight > upperBatchHeight) {
-						pruneStartHeight = upperBatchHeight;
-						repository.getATRepository().setAtPruneHeight(pruneStartHeight);
-						maxLatestAtStatesHeight = PruneManager.getMaxHeightForLatestAtStates(repository);
-						repository.getATRepository().rebuildLatestAtStates(maxLatestAtStatesHeight);
-						repository.saveChanges();
+					int numAtStatesPruned = repository.getATRepository().pruneAtStates(pruneStartHeight, upperPruneHeight);
+					repository.saveChanges();
+					int numAtStateDataRowsTrimmed = repository.getATRepository().trimAtStates(
+							pruneStartHeight, upperPruneHeight, Settings.getInstance().getAtStatesTrimLimit());
+					repository.saveChanges();
 
+					if (numAtStatesPruned > 0 || numAtStateDataRowsTrimmed > 0) {
 						final int finalPruneStartHeight = pruneStartHeight;
-						LOGGER.debug(() -> String.format("Bumping AT state base prune height to %d", finalPruneStartHeight));
+						LOGGER.info(() -> String.format("Pruned %d AT state%s between blocks %d and %d",
+								numAtStatesPruned, (numAtStatesPruned != 1 ? "s" : ""),
+								finalPruneStartHeight, upperPruneHeight));
+					} else {
+						// Can we move onto next batch?
+						if (upperPrunableHeight > upperBatchHeight) {
+							pruneStartHeight = upperBatchHeight;
+							repository.getATRepository().setAtPruneHeight(pruneStartHeight);
+							maxLatestAtStatesHeight = PruneManager.getMaxHeightForLatestAtStates(repository);
+							repository.getATRepository().rebuildLatestAtStates(maxLatestAtStatesHeight);
+							repository.saveChanges();
+
+							final int finalPruneStartHeight = pruneStartHeight;
+							LOGGER.info(() -> String.format("Bumping AT state base prune height to %d", finalPruneStartHeight));
+						} else {
+							// We've pruned up to the upper prunable height
+							// Back off for a while to save CPU for syncing
+							repository.discardChanges();
+							Thread.sleep(5 * 60 * 1000L);
+						}
 					}
-					else {
-						// We've pruned up to the upper prunable height
-						// Back off for a while to save CPU for syncing
-						repository.discardChanges();
-						Thread.sleep(5*60*1000L);
+				} catch (InterruptedException e) {
+					if (Controller.isStopping()) {
+						LOGGER.info("AT States Pruning Shutting Down");
+					} else {
+						LOGGER.warn("AT States Pruning interrupted. Trying again. Report this error immediately to the developers.", e);
 					}
+				} catch (Exception e) {
+					LOGGER.warn("AT States Pruning stopped working. Trying again. Report this error immediately to the developers.", e);
 				}
+			} catch(Exception e){
+				LOGGER.error("AT States Pruning is not working! Not trying again. Restart ASAP. Report this error immediately to the developers.", e);
 			}
-		} catch (DataException e) {
-			LOGGER.warn(String.format("Repository issue trying to prune AT states: %s", e.getMessage()));
-		} catch (InterruptedException e) {
-			// Time to exit
 		}
 	}
-
 }

src/main/java/org/qortal/controller/repository/AtStatesTrimmer.java

@@ -11,6 +11,8 @@ import org.qortal.repository.RepositoryManager;
 import org.qortal.settings.Settings;
 import org.qortal.utils.NTP;
 
+import static java.lang.Thread.MIN_PRIORITY;
+
 public class AtStatesTrimmer implements Runnable {
 
 	private static final Logger LOGGER = LogManager.getLogger(AtStatesTrimmer.class);
@@ -24,66 +26,83 @@ public class AtStatesTrimmer implements Runnable {
 			return;
 		}
 
+		int trimStartHeight;
+		int maxLatestAtStatesHeight;
+
 		try (final Repository repository = RepositoryManager.getRepository()) {
-			int trimStartHeight = repository.getATRepository().getAtTrimHeight();
-			int maxLatestAtStatesHeight = PruneManager.getMaxHeightForLatestAtStates(repository);
+			trimStartHeight = repository.getATRepository().getAtTrimHeight();
+			maxLatestAtStatesHeight = PruneManager.getMaxHeightForLatestAtStates(repository);
 
 			repository.discardChanges();
 			repository.getATRepository().rebuildLatestAtStates(maxLatestAtStatesHeight);
 			repository.saveChanges();
+		} catch (Exception e) {
+			LOGGER.error("AT States Trimming is not working! Not trying again. Restart ASAP. Report this error immediately to the developers.", e);
+			return;
+		}
 
-			while (!Controller.isStopping()) {
-				repository.discardChanges();
+		while (!Controller.isStopping()) {
+			try (final Repository repository = RepositoryManager.getRepository()) {
+				try {
+					repository.discardChanges();
 
-				Thread.sleep(Settings.getInstance().getAtStatesTrimInterval());
+					Thread.sleep(Settings.getInstance().getAtStatesTrimInterval());
 
-				BlockData chainTip = Controller.getInstance().getChainTip();
-				if (chainTip == null || NTP.getTime() == null)
-					continue;
+					BlockData chainTip = Controller.getInstance().getChainTip();
+					if (chainTip == null || NTP.getTime() == null)
+						continue;
 
-				// Don't even attempt if we're mid-sync as our repository requests will be delayed for ages
-				if (Synchronizer.getInstance().isSynchronizing())
-					continue;
+					// Don't even attempt if we're mid-sync as our repository requests will be delayed for ages
+					if (Synchronizer.getInstance().isSynchronizing())
+						continue;
 
-				long currentTrimmableTimestamp = NTP.getTime() - Settings.getInstance().getAtStatesMaxLifetime();
-				// We want to keep AT states near the tip of our copy of blockchain so we can process/orphan nearby blocks
-				long chainTrimmableTimestamp = chainTip.getTimestamp() - Settings.getInstance().getAtStatesMaxLifetime();
+					long currentTrimmableTimestamp = NTP.getTime() - Settings.getInstance().getAtStatesMaxLifetime();
+					// We want to keep AT states near the tip of our copy of blockchain so we can process/orphan nearby blocks
+					long chainTrimmableTimestamp = chainTip.getTimestamp() - Settings.getInstance().getAtStatesMaxLifetime();
 
-				long upperTrimmableTimestamp = Math.min(currentTrimmableTimestamp, chainTrimmableTimestamp);
-				int upperTrimmableHeight = repository.getBlockRepository().getHeightFromTimestamp(upperTrimmableTimestamp);
+					long upperTrimmableTimestamp = Math.min(currentTrimmableTimestamp, chainTrimmableTimestamp);
+					int upperTrimmableHeight = repository.getBlockRepository().getHeightFromTimestamp(upperTrimmableTimestamp);
 
-				int upperBatchHeight = trimStartHeight + Settings.getInstance().getAtStatesTrimBatchSize();
-				int upperTrimHeight = Math.min(upperBatchHeight, upperTrimmableHeight);
+					int upperBatchHeight = trimStartHeight + Settings.getInstance().getAtStatesTrimBatchSize();
+					int upperTrimHeight = Math.min(upperBatchHeight, upperTrimmableHeight);
 
-				if (trimStartHeight >= upperTrimHeight)
-					continue;
+					if (trimStartHeight >= upperTrimHeight)
+						continue;
 
-				int numAtStatesTrimmed = repository.getATRepository().trimAtStates(trimStartHeight, upperTrimHeight, Settings.getInstance().getAtStatesTrimLimit());
-				repository.saveChanges();
-
-				if (numAtStatesTrimmed > 0) {
-					final int finalTrimStartHeight = trimStartHeight;
-					LOGGER.debug(() -> String.format("Trimmed %d AT state%s between blocks %d and %d",
-							numAtStatesTrimmed, (numAtStatesTrimmed != 1 ? "s" : ""),
-							finalTrimStartHeight, upperTrimHeight));
-				} else {
-					// Can we move onto next batch?
-					if (upperTrimmableHeight > upperBatchHeight) {
-						trimStartHeight = upperBatchHeight;
-						repository.getATRepository().setAtTrimHeight(trimStartHeight);
-						maxLatestAtStatesHeight = PruneManager.getMaxHeightForLatestAtStates(repository);
-						repository.getATRepository().rebuildLatestAtStates(maxLatestAtStatesHeight);
-						repository.saveChanges();
+					int numAtStatesTrimmed = repository.getATRepository().trimAtStates(trimStartHeight, upperTrimHeight, Settings.getInstance().getAtStatesTrimLimit());
+					repository.saveChanges();
 
+					if (numAtStatesTrimmed > 0) {
 						final int finalTrimStartHeight = trimStartHeight;
-						LOGGER.debug(() -> String.format("Bumping AT state base trim height to %d", finalTrimStartHeight));
+						LOGGER.info(() -> String.format("Trimmed %d AT state%s between blocks %d and %d",
+								numAtStatesTrimmed, (numAtStatesTrimmed != 1 ? "s" : ""),
+								finalTrimStartHeight, upperTrimHeight));
+					} else {
+						// Can we move onto next batch?
+						if (upperTrimmableHeight > upperBatchHeight) {
+							trimStartHeight = upperBatchHeight;
+							repository.getATRepository().setAtTrimHeight(trimStartHeight);
+							maxLatestAtStatesHeight = PruneManager.getMaxHeightForLatestAtStates(repository);
+							repository.getATRepository().rebuildLatestAtStates(maxLatestAtStatesHeight);
+							repository.saveChanges();
+
+							final int finalTrimStartHeight = trimStartHeight;
+							LOGGER.info(() -> String.format("Bumping AT state base trim height to %d", finalTrimStartHeight));
+						}
 					}
+				} catch (InterruptedException e) {
+					if(Controller.isStopping()) {
+						LOGGER.info("AT States Trimming Shutting Down");
+					}
+					else {
+						LOGGER.warn("AT States Trimming interrupted. Trying again. Report this error immediately to the developers.", e);
+					}
+				} catch (Exception e) {
+					LOGGER.warn("AT States Trimming stopped working. Trying again. Report this error immediately to the developers.", e);
 				}
+			} catch (Exception e) {
+				LOGGER.error("AT States Trimming is not working! Not trying again. Restart ASAP. Report this error immediately to the developers.", e);
 			}
-		} catch (DataException e) {
-			LOGGER.warn(String.format("Repository issue trying to trim AT states: %s", e.getMessage()));
-		} catch (InterruptedException e) {
-			// Time to exit
 		}
 	}
 

src/main/java/org/qortal/controller/repository/BlockArchiver.java

@@ -15,11 +15,13 @@ import org.qortal.utils.NTP;
 
 import java.io.IOException;
 
+import static java.lang.Thread.NORM_PRIORITY;
+
 public class BlockArchiver implements Runnable {
 
 	private static final Logger LOGGER = LogManager.getLogger(BlockArchiver.class);
 
-	private static final long INITIAL_SLEEP_PERIOD = 5 * 60 * 1000L + 1234L; // ms
+	private static final long INITIAL_SLEEP_PERIOD = 15 * 60 * 1000L; // ms
 
 	public void run() {
 		Thread.currentThread().setName("Block archiver");
@@ -28,11 +30,13 @@ public class BlockArchiver implements Runnable {
 			return;
 		}
 
+		int startHeight;
+
 		try (final Repository repository = RepositoryManager.getRepository()) {
 			// Don't even start building until initial rush has ended
 			Thread.sleep(INITIAL_SLEEP_PERIOD);
 
-			int startHeight = repository.getBlockArchiveRepository().getBlockArchiveHeight();
+			startHeight = repository.getBlockArchiveRepository().getBlockArchiveHeight();
 
 			// Don't attempt to archive if we have no ATStatesHeightIndex, as it will be too slow
 			boolean hasAtStatesHeightIndex = repository.getATRepository().hasAtStatesHeightIndex();
@@ -41,77 +45,87 @@ public class BlockArchiver implements Runnable {
 				repository.discardChanges();
 				return;
 			}
-
-			LOGGER.info("Starting block archiver from height {}...", startHeight);
-
-			while (!Controller.isStopping()) {
-				repository.discardChanges();
-
-				Thread.sleep(Settings.getInstance().getArchiveInterval());
-
-				BlockData chainTip = Controller.getInstance().getChainTip();
-				if (chainTip == null || NTP.getTime() == null) {
-					continue;
-				}
-
-				// Don't even attempt if we're mid-sync as our repository requests will be delayed for ages
-				if (Synchronizer.getInstance().isSynchronizing()) {
-					continue;
-				}
-
-				// Don't attempt to archive if we're not synced yet
-				final Long minLatestBlockTimestamp = Controller.getMinimumLatestBlockTimestamp();
-				if (minLatestBlockTimestamp == null || chainTip.getTimestamp() < minLatestBlockTimestamp) {
-					continue;
-				}
-
-
-				// Build cache of blocks
-				try {
-					final int maximumArchiveHeight = BlockArchiveWriter.getMaxArchiveHeight(repository);
-					BlockArchiveWriter writer = new BlockArchiveWriter(startHeight, maximumArchiveHeight, repository);
-					BlockArchiveWriter.BlockArchiveWriteResult result = writer.write();
-					switch (result) {
-						case OK:
-							// Increment block archive height
-							startHeight += writer.getWrittenCount();
-							repository.getBlockArchiveRepository().setBlockArchiveHeight(startHeight);
-							repository.saveChanges();
-							break;
-
-						case STOPPING:
-							return;
-
-							// We've reached the limit of the blocks we can archive
-							// Sleep for a while to allow more to become available
-						case NOT_ENOUGH_BLOCKS:
-							// We didn't reach our file size target, so that must mean that we don't have enough blocks
-							// yet or something went wrong. Sleep for a while and then try again.
-							repository.discardChanges();
-							Thread.sleep(60 * 60 * 1000L); // 1 hour
-							break;
-
-						case BLOCK_NOT_FOUND:
-							// We tried to archive a block that didn't exist. This is a major failure and likely means
-							// that a bootstrap or re-sync is needed. Try again every minute until then.
-							LOGGER.info("Error: block not found when building archive. If this error persists, " +
-									"a bootstrap or re-sync may be needed.");
-							repository.discardChanges();
-							Thread.sleep( 60 * 1000L); // 1 minute
-							break;
-					}
-
-				} catch (IOException | TransformationException e) {
-					LOGGER.info("Caught exception when creating block cache", e);
-				}
-
-			}
-		} catch (DataException e) {
-			LOGGER.info("Caught exception when creating block cache", e);
-		} catch (InterruptedException e) {
-			// Do nothing
+		} catch (Exception e) {
+			LOGGER.error("Block Archiving is not working! Not trying again. Restart ASAP. Report this error immediately to the developers.", e);
+			return;
 		}
 
-	}
+		LOGGER.info("Starting block archiver from height {}...", startHeight);
 
+		while (!Controller.isStopping()) {
+			try (final Repository repository = RepositoryManager.getRepository()) {
+
+				try {
+					repository.discardChanges();
+
+					Thread.sleep(Settings.getInstance().getArchiveInterval());
+
+					BlockData chainTip = Controller.getInstance().getChainTip();
+					if (chainTip == null || NTP.getTime() == null) {
+						continue;
+					}
+
+					// Don't even attempt if we're mid-sync as our repository requests will be delayed for ages
+					if (Synchronizer.getInstance().isSynchronizing()) {
+						continue;
+					}
+
+					// Don't attempt to archive if we're not synced yet
+					final Long minLatestBlockTimestamp = Controller.getMinimumLatestBlockTimestamp();
+					if (minLatestBlockTimestamp == null || chainTip.getTimestamp() < minLatestBlockTimestamp) {
+						continue;
+					}
+
+					// Build cache of blocks
+					try {
+						final int maximumArchiveHeight = BlockArchiveWriter.getMaxArchiveHeight(repository);
+						BlockArchiveWriter writer = new BlockArchiveWriter(startHeight, maximumArchiveHeight, repository);
+						BlockArchiveWriter.BlockArchiveWriteResult result = writer.write();
+						switch (result) {
+							case OK:
+								// Increment block archive height
+								startHeight += writer.getWrittenCount();
+								repository.getBlockArchiveRepository().setBlockArchiveHeight(startHeight);
+								repository.saveChanges();
+								break;
+
+							case STOPPING:
+								return;
+
+								// We've reached the limit of the blocks we can archive
+								// Sleep for a while to allow more to become available
+							case NOT_ENOUGH_BLOCKS:
+								// We didn't reach our file size target, so that must mean that we don't have enough blocks
+								// yet or something went wrong. Sleep for a while and then try again.
+								repository.discardChanges();
+								Thread.sleep(2 * 60 * 60 * 1000L); // 1 hour
+								break;
+
+							case BLOCK_NOT_FOUND:
+								// We tried to archive a block that didn't exist. This is a major failure and likely means
+								// that a bootstrap or re-sync is needed. Try again every minute until then.
+								LOGGER.info("Error: block not found when building archive. If this error persists, " +
+										"a bootstrap or re-sync may be needed.");
+								repository.discardChanges();
+								Thread.sleep(60 * 1000L); // 1 minute
+								break;
+						}
+
+					} catch (IOException | TransformationException e) {
+						LOGGER.info("Caught exception when creating block cache", e);
+					}
+				} catch (InterruptedException e) {
+					if (Controller.isStopping()) {
+						LOGGER.info("Block Archiving Shutting Down");
+					} else {
+						LOGGER.warn("Block Archiving interrupted. Trying again. Report this error immediately to the developers.", e);
+					}
+				} catch (Exception e) {
+					LOGGER.warn("Block Archiving stopped working. Trying again. Report this error immediately to the developers.", e);
+				}
+			} catch(Exception e){
+				LOGGER.error("Block Archiving is not working! Not trying again. Restart ASAP. Report this error immediately to the developers.", e);
+			}
+		}
+	}
 }

src/main/java/org/qortal/controller/repository/BlockPruner.java

@@ -11,6 +11,8 @@ import org.qortal.repository.RepositoryManager;
 import org.qortal.settings.Settings;
 import org.qortal.utils.NTP;
 
+import static java.lang.Thread.NORM_PRIORITY;
+
 public class BlockPruner implements Runnable {
 
 	private static final Logger LOGGER = LogManager.getLogger(BlockPruner.class);
@@ -37,8 +39,10 @@ public class BlockPruner implements Runnable {
 			}
 		}
 
+		int pruneStartHeight;
+
 		try (final Repository repository = RepositoryManager.getRepository()) {
-			int pruneStartHeight = repository.getBlockRepository().getBlockPruneHeight();
+			pruneStartHeight = repository.getBlockRepository().getBlockPruneHeight();
 
 			// Don't attempt to prune if we have no ATStatesHeightIndex, as it will be too slow
 			boolean hasAtStatesHeightIndex = repository.getATRepository().hasAtStatesHeightIndex();
@@ -46,75 +50,90 @@ public class BlockPruner implements Runnable {
 				LOGGER.info("Unable to start block pruner due to missing ATStatesHeightIndex. Bootstrapping is recommended.");
 				return;
 			}
+		} catch (Exception e) {
+			LOGGER.error("Block Pruning is not working! Not trying again. Restart ASAP. Report this error immediately to the developers.", e);
+			return;
+		}
 
-			while (!Controller.isStopping()) {
-				repository.discardChanges();
+		while (!Controller.isStopping()) {
 
-				Thread.sleep(Settings.getInstance().getBlockPruneInterval());
+			try (final Repository repository = RepositoryManager.getRepository()) {
 
-				BlockData chainTip = Controller.getInstance().getChainTip();
-				if (chainTip == null || NTP.getTime() == null)
-					continue;
+				try {
+					repository.discardChanges();
 
-				// Don't even attempt if we're mid-sync as our repository requests will be delayed for ages
-				if (Synchronizer.getInstance().isSynchronizing()) {
-					continue;
-				}
+					Thread.sleep(Settings.getInstance().getBlockPruneInterval());
 
-				// Don't attempt to prune if we're not synced yet
-				final Long minLatestBlockTimestamp = Controller.getMinimumLatestBlockTimestamp();
-				if (minLatestBlockTimestamp == null || chainTip.getTimestamp() < minLatestBlockTimestamp) {
-					continue;
-				}
+					BlockData chainTip = Controller.getInstance().getChainTip();
+					if (chainTip == null || NTP.getTime() == null)
+						continue;
 
-				// Prune all blocks up until our latest minus pruneBlockLimit
-				final int ourLatestHeight = chainTip.getHeight();
-				int upperPrunableHeight = ourLatestHeight - Settings.getInstance().getPruneBlockLimit();
+					// Don't even attempt if we're mid-sync as our repository requests will be delayed for ages
+					if (Synchronizer.getInstance().isSynchronizing()) {
+						continue;
+					}
 
-				// In archive mode we are only allowed to trim blocks that have already been archived
-				if (archiveMode) {
-					upperPrunableHeight = repository.getBlockArchiveRepository().getBlockArchiveHeight() - 1;
-				}
+					// Don't attempt to prune if we're not synced yet
+					final Long minLatestBlockTimestamp = Controller.getMinimumLatestBlockTimestamp();
+					if (minLatestBlockTimestamp == null || chainTip.getTimestamp() < minLatestBlockTimestamp) {
+						continue;
+					}
 
-				int upperBatchHeight = pruneStartHeight + Settings.getInstance().getBlockPruneBatchSize();
-				int upperPruneHeight = Math.min(upperBatchHeight, upperPrunableHeight);
+					// Prune all blocks up until our latest minus pruneBlockLimit
+					final int ourLatestHeight = chainTip.getHeight();
+					int upperPrunableHeight = ourLatestHeight - Settings.getInstance().getPruneBlockLimit();
 
-				if (pruneStartHeight >= upperPruneHeight) {
-					continue;
-				}
+					// In archive mode we are only allowed to trim blocks that have already been archived
+					if (archiveMode) {
+						upperPrunableHeight = repository.getBlockArchiveRepository().getBlockArchiveHeight() - 1;
+					}
 
-				LOGGER.debug(String.format("Pruning blocks between %d and %d...", pruneStartHeight, upperPruneHeight));
+					int upperBatchHeight = pruneStartHeight + Settings.getInstance().getBlockPruneBatchSize();
+					int upperPruneHeight = Math.min(upperBatchHeight, upperPrunableHeight);
 
-				int numBlocksPruned = repository.getBlockRepository().pruneBlocks(pruneStartHeight, upperPruneHeight);
-				repository.saveChanges();
+					if (pruneStartHeight >= upperPruneHeight) {
+						continue;
+					}
 
-				if (numBlocksPruned > 0) {
-					LOGGER.debug(String.format("Pruned %d block%s between %d and %d",
-							numBlocksPruned, (numBlocksPruned != 1 ? "s" : ""),
-							pruneStartHeight, upperPruneHeight));
-				} else {
-					final int nextPruneHeight = upperPruneHeight + 1;
-					repository.getBlockRepository().setBlockPruneHeight(nextPruneHeight);
+					LOGGER.info(String.format("Pruning blocks between %d and %d...", pruneStartHeight, upperPruneHeight));
+
+					int numBlocksPruned = repository.getBlockRepository().pruneBlocks(pruneStartHeight, upperPruneHeight);
 					repository.saveChanges();
-					LOGGER.debug(String.format("Bumping block base prune height to %d", pruneStartHeight));
 
-					// Can we move onto next batch?
-					if (upperPrunableHeight > nextPruneHeight) {
-						pruneStartHeight = nextPruneHeight;
+					if (numBlocksPruned > 0) {
+						LOGGER.info(String.format("Pruned %d block%s between %d and %d",
+								numBlocksPruned, (numBlocksPruned != 1 ? "s" : ""),
+								pruneStartHeight, upperPruneHeight));
+					} else {
+						final int nextPruneHeight = upperPruneHeight + 1;
+						repository.getBlockRepository().setBlockPruneHeight(nextPruneHeight);
+						repository.saveChanges();
+						LOGGER.info(String.format("Bumping block base prune height to %d", pruneStartHeight));
+
+						// Can we move onto next batch?
+						if (upperPrunableHeight > nextPruneHeight) {
+							pruneStartHeight = nextPruneHeight;
+						}
+						else {
+							// We've pruned up to the upper prunable height
+							// Back off for a while to save CPU for syncing
+							repository.discardChanges();
+							Thread.sleep(10*60*1000L);
+						}
+					}
+				} catch (InterruptedException e) {
+					if(Controller.isStopping()) {
+						LOGGER.info("Block Pruning Shutting Down");
 					}
 					else {
-						// We've pruned up to the upper prunable height
-						// Back off for a while to save CPU for syncing
-						repository.discardChanges();
-						Thread.sleep(10*60*1000L);
+						LOGGER.warn("Block Pruning interrupted. Trying again. Report this error immediately to the developers.", e);
 					}
+				} catch (Exception e) {
+					LOGGER.warn("Block Pruning stopped working. Trying again. Report this error immediately to the developers.", e);
 				}
+			} catch(Exception e){
+				LOGGER.error("Block Pruning is not working! Not trying again. Restart ASAP. Report this error immediately to the developers.", e);
 			}
-		} catch (DataException e) {
-			LOGGER.warn(String.format("Repository issue trying to prune blocks: %s", e.getMessage()));
-		} catch (InterruptedException e) {
-			// Time to exit
 		}
 	}
-
 }

src/main/java/org/qortal/controller/repository/OnlineAccountsSignaturesTrimmer.java

@@ -12,6 +12,8 @@ import org.qortal.repository.RepositoryManager;
 import org.qortal.settings.Settings;
 import org.qortal.utils.NTP;
 
+import static java.lang.Thread.NORM_PRIORITY;
+
 public class OnlineAccountsSignaturesTrimmer implements Runnable {
 
 	private static final Logger LOGGER = LogManager.getLogger(OnlineAccountsSignaturesTrimmer.class);
@@ -26,61 +28,77 @@ public class OnlineAccountsSignaturesTrimmer implements Runnable {
 			return;
 		}
 
+		int trimStartHeight;
+
 		try (final Repository repository = RepositoryManager.getRepository()) {
 			// Don't even start trimming until initial rush has ended
 			Thread.sleep(INITIAL_SLEEP_PERIOD);
 
-			int trimStartHeight = repository.getBlockRepository().getOnlineAccountsSignaturesTrimHeight();
+			trimStartHeight = repository.getBlockRepository().getOnlineAccountsSignaturesTrimHeight();
+		} catch (Exception e) {
+			LOGGER.error("Online Accounts Signatures Trimming is not working! Not trying again. Restart ASAP. Report this error immediately to the developers.", e);
+			return;
+		}
 
-			while (!Controller.isStopping()) {
-				repository.discardChanges();
+		while (!Controller.isStopping()) {
+			try (final Repository repository = RepositoryManager.getRepository()) {
 
-				Thread.sleep(Settings.getInstance().getOnlineSignaturesTrimInterval());
+				try {
+					repository.discardChanges();
 
-				BlockData chainTip = Controller.getInstance().getChainTip();
-				if (chainTip == null || NTP.getTime() == null)
-					continue;
+					Thread.sleep(Settings.getInstance().getOnlineSignaturesTrimInterval());
 
-				// Don't even attempt if we're mid-sync as our repository requests will be delayed for ages
-				if (Synchronizer.getInstance().isSynchronizing())
-					continue;
+					BlockData chainTip = Controller.getInstance().getChainTip();
+					if (chainTip == null || NTP.getTime() == null)
+						continue;
 
-				// Trim blockchain by removing 'old' online accounts signatures
-				long upperTrimmableTimestamp = NTP.getTime() - BlockChain.getInstance().getOnlineAccountSignaturesMaxLifetime();
-				int upperTrimmableHeight = repository.getBlockRepository().getHeightFromTimestamp(upperTrimmableTimestamp);
+					// Don't even attempt if we're mid-sync as our repository requests will be delayed for ages
+					if (Synchronizer.getInstance().isSynchronizing())
+						continue;
 
-				int upperBatchHeight = trimStartHeight + Settings.getInstance().getOnlineSignaturesTrimBatchSize();
-				int upperTrimHeight = Math.min(upperBatchHeight, upperTrimmableHeight);
+					// Trim blockchain by removing 'old' online accounts signatures
+					long upperTrimmableTimestamp = NTP.getTime() - BlockChain.getInstance().getOnlineAccountSignaturesMaxLifetime();
+					int upperTrimmableHeight = repository.getBlockRepository().getHeightFromTimestamp(upperTrimmableTimestamp);
 
-				if (trimStartHeight >= upperTrimHeight)
-					continue;
+					int upperBatchHeight = trimStartHeight + Settings.getInstance().getOnlineSignaturesTrimBatchSize();
+					int upperTrimHeight = Math.min(upperBatchHeight, upperTrimmableHeight);
 
-				int numSigsTrimmed = repository.getBlockRepository().trimOldOnlineAccountsSignatures(trimStartHeight, upperTrimHeight);
-				repository.saveChanges();
+					if (trimStartHeight >= upperTrimHeight)
+						continue;
 
-				if (numSigsTrimmed > 0) {
-					final int finalTrimStartHeight = trimStartHeight;
-					LOGGER.debug(() -> String.format("Trimmed %d online accounts signature%s between blocks %d and %d",
-							numSigsTrimmed, (numSigsTrimmed != 1 ? "s" : ""),
-							finalTrimStartHeight, upperTrimHeight));
-				} else {
-					// Can we move onto next batch?
-					if (upperTrimmableHeight > upperBatchHeight) {
-						trimStartHeight = upperBatchHeight;
-
-						repository.getBlockRepository().setOnlineAccountsSignaturesTrimHeight(trimStartHeight);
-						repository.saveChanges();
+					int numSigsTrimmed = repository.getBlockRepository().trimOldOnlineAccountsSignatures(trimStartHeight, upperTrimHeight);
+					repository.saveChanges();
 
+					if (numSigsTrimmed > 0) {
 						final int finalTrimStartHeight = trimStartHeight;
-						LOGGER.debug(() -> String.format("Bumping online accounts signatures base trim height to %d", finalTrimStartHeight));
+						LOGGER.info(() -> String.format("Trimmed %d online accounts signature%s between blocks %d and %d",
+								numSigsTrimmed, (numSigsTrimmed != 1 ? "s" : ""),
+								finalTrimStartHeight, upperTrimHeight));
+					} else {
+						// Can we move onto next batch?
+						if (upperTrimmableHeight > upperBatchHeight) {
+							trimStartHeight = upperBatchHeight;
+
+							repository.getBlockRepository().setOnlineAccountsSignaturesTrimHeight(trimStartHeight);
+							repository.saveChanges();
+
+							final int finalTrimStartHeight = trimStartHeight;
+							LOGGER.info(() -> String.format("Bumping online accounts signatures base trim height to %d", finalTrimStartHeight));
+						}
 					}
+				} catch (InterruptedException e) {
+					if(Controller.isStopping()) {
+						LOGGER.info("Online Accounts Signatures Trimming Shutting Down");
+					}
+					else {
+						LOGGER.warn("Online Accounts Signatures Trimming interrupted. Trying again. Report this error immediately to the developers.", e);
+					}
+				} catch (Exception e) {
+					LOGGER.warn("Online Accounts Signatures Trimming stopped working. Trying again. Report this error immediately to the developers.", e);
 				}
+			} catch (Exception e) {
+				LOGGER.error("Online Accounts Signatures Trimming is not working! Not trying again. Restart ASAP. Report this error immediately to the developers.", e);
 			}
-		} catch (DataException e) {
-			LOGGER.warn(String.format("Repository issue trying to trim online accounts signatures: %s", e.getMessage()));
-		} catch (InterruptedException e) {
-			// Time to exit
 		}
 	}
-
 }

src/main/java/org/qortal/controller/repository/PruneManager.java

@@ -40,7 +40,7 @@ public class PruneManager {
     }
 
     public void start() {
-        this.executorService = Executors.newCachedThreadPool(new DaemonThreadFactory());
+        this.executorService = Executors.newCachedThreadPool(new DaemonThreadFactory(Settings.getInstance().getPruningThreadPriority()));
 
         if (Settings.getInstance().isTopOnly()) {
             // Top-only-sync

src/main/java/org/qortal/controller/tradebot/BitcoinACCTv1TradeBot.java

@@ -7,6 +7,7 @@ import org.bitcoinj.script.Script.ScriptType;
 import org.qortal.account.PrivateKeyAccount;
 import org.qortal.account.PublicKeyAccount;
 import org.qortal.api.model.crosschain.TradeBotCreateRequest;
+import org.qortal.api.resource.CrossChainUtils;
 import org.qortal.asset.Asset;
 import org.qortal.crosschain.*;
 import org.qortal.crypto.Crypto;
@@ -527,7 +528,7 @@ public class BitcoinACCTv1TradeBot implements AcctTradeBot {
 		// P2SH-A funding confirmed
 
 		// Attempt to send MESSAGE to Bob's Qortal trade address
-		byte[] messageData = BitcoinACCTv1.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
+		byte[] messageData = CrossChainUtils.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
 		String messageRecipient = crossChainTradeData.qortalCreatorTradeAddress;
 
 		boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
@@ -893,7 +894,7 @@ public class BitcoinACCTv1TradeBot implements AcctTradeBot {
 		// Redeem P2SH-B using secret-B
 		Coin redeemAmount = Coin.valueOf(P2SH_B_OUTPUT_AMOUNT); // An actual amount to avoid dust filter, remaining used as fees. The real funds are in P2SH-A.
 		ECKey redeemKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-		List<TransactionOutput> fundingOutputs = bitcoin.getUnspentOutputs(p2shAddressB);
+		List<TransactionOutput> fundingOutputs = bitcoin.getUnspentOutputs(p2shAddressB, false);
 		byte[] receivingAccountInfo = tradeBotData.getReceivingAccountInfo();
 
 		Transaction p2shRedeemTransaction = BitcoinyHTLC.buildRedeemTransaction(bitcoin.getNetworkParameters(), redeemAmount, redeemKey,
@@ -1063,7 +1064,7 @@ public class BitcoinACCTv1TradeBot implements AcctTradeBot {
 			case FUNDED: {
 				Coin redeemAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount - P2SH_B_OUTPUT_AMOUNT);
 				ECKey redeemKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = bitcoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = bitcoin.getUnspentOutputs(p2shAddressA, false);
 
 				Transaction p2shRedeemTransaction = BitcoinyHTLC.buildRedeemTransaction(bitcoin.getNetworkParameters(), redeemAmount, redeemKey,
 						fundingOutputs, redeemScriptA, secretA, receivingAccountInfo);
@@ -1135,7 +1136,7 @@ public class BitcoinACCTv1TradeBot implements AcctTradeBot {
 			case FUNDED:{
 				Coin refundAmount = Coin.valueOf(P2SH_B_OUTPUT_AMOUNT); // An actual amount to avoid dust filter, remaining used as fees.
 				ECKey refundKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = bitcoin.getUnspentOutputs(p2shAddressB);
+				List<TransactionOutput> fundingOutputs = bitcoin.getUnspentOutputs(p2shAddressB, false);
 
 				// Determine receive address for refund
 				String receiveAddress = bitcoin.getUnusedReceiveAddress(tradeBotData.getForeignKey());
@@ -1201,7 +1202,7 @@ public class BitcoinACCTv1TradeBot implements AcctTradeBot {
 			case FUNDED:{
 				Coin refundAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount - P2SH_B_OUTPUT_AMOUNT);
 				ECKey refundKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = bitcoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = bitcoin.getUnspentOutputs(p2shAddressA, false);
 
 				// Determine receive address for refund
 				String receiveAddress = bitcoin.getUnusedReceiveAddress(tradeBotData.getForeignKey());

src/main/java/org/qortal/controller/tradebot/BitcoinACCTv3TradeBot.java

@@ -7,7 +7,9 @@ import org.bitcoinj.script.Script.ScriptType;
 import org.qortal.account.PrivateKeyAccount;
 import org.qortal.account.PublicKeyAccount;
 import org.qortal.api.model.crosschain.TradeBotCreateRequest;
+import org.qortal.api.resource.CrossChainUtils;
 import org.qortal.asset.Asset;
+import org.qortal.controller.tradebot.TradeStates.State;
 import org.qortal.crosschain.*;
 import org.qortal.crypto.Crypto;
 import org.qortal.data.at.ATData;
@@ -30,12 +32,8 @@ import org.qortal.utils.NTP;
 
 import java.util.Arrays;
 import java.util.List;
-import java.util.Map;
 import java.util.stream.Collectors;
 
-import static java.util.Arrays.stream;
-import static java.util.stream.Collectors.toMap;
-
 /**
  * Performing cross-chain trading steps on behalf of user.
  * <p>
@@ -50,45 +48,6 @@ public class BitcoinACCTv3TradeBot implements AcctTradeBot {
 
 	private static final Logger LOGGER = LogManager.getLogger(BitcoinACCTv3TradeBot.class);
 
-	public enum State implements TradeBot.StateNameAndValueSupplier {
-		BOB_WAITING_FOR_AT_CONFIRM(10, false, false),
-		BOB_WAITING_FOR_MESSAGE(15, true, true),
-		BOB_WAITING_FOR_AT_REDEEM(25, true, true),
-		BOB_DONE(30, false, false),
-		BOB_REFUNDED(35, false, false),
-
-		ALICE_WAITING_FOR_AT_LOCK(85, true, true),
-		ALICE_DONE(95, false, false),
-		ALICE_REFUNDING_A(105, true, true),
-		ALICE_REFUNDED(110, false, false);
-
-		private static final Map<Integer, State> map = stream(State.values()).collect(toMap(state -> state.value, state -> state));
-
-		public final int value;
-		public final boolean requiresAtData;
-		public final boolean requiresTradeData;
-
-		State(int value, boolean requiresAtData, boolean requiresTradeData) {
-			this.value = value;
-			this.requiresAtData = requiresAtData;
-			this.requiresTradeData = requiresTradeData;
-		}
-
-		public static State valueOf(int value) {
-			return map.get(value);
-		}
-
-		@Override
-		public String getState() {
-			return this.name();
-		}
-
-		@Override
-		public int getStateValue() {
-			return this.value;
-		}
-	}
-
 	/** Maximum time Bob waits for his AT creation transaction to be confirmed into a block. (milliseconds) */
 	private static final long MAX_AT_CONFIRMATION_PERIOD = 24 * 60 * 60 * 1000L; // ms
 
@@ -313,7 +272,7 @@ public class BitcoinACCTv3TradeBot implements AcctTradeBot {
 		}
 
 		// Attempt to send MESSAGE to Bob's Qortal trade address
-		byte[] messageData = BitcoinACCTv3.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
+		byte[] messageData = CrossChainUtils.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
 		String messageRecipient = crossChainTradeData.qortalCreatorTradeAddress;
 
 		boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
@@ -793,7 +752,7 @@ public class BitcoinACCTv3TradeBot implements AcctTradeBot {
 			case FUNDED: {
 				Coin redeemAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey redeemKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = bitcoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = bitcoin.getUnspentOutputs(p2shAddressA, false);
 
 				Transaction p2shRedeemTransaction = BitcoinyHTLC.buildRedeemTransaction(bitcoin.getNetworkParameters(), redeemAmount, redeemKey,
 						fundingOutputs, redeemScriptA, secretA, receivingAccountInfo);
@@ -857,7 +816,7 @@ public class BitcoinACCTv3TradeBot implements AcctTradeBot {
 			case FUNDED:{
 				Coin refundAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey refundKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = bitcoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = bitcoin.getUnspentOutputs(p2shAddressA, false);
 
 				// Determine receive address for refund
 				String receiveAddress = bitcoin.getUnusedReceiveAddress(tradeBotData.getForeignKey());

src/main/java/org/qortal/controller/tradebot/DigibyteACCTv3TradeBot.java

@@ -7,6 +7,7 @@ import org.bitcoinj.script.Script.ScriptType;
 import org.qortal.account.PrivateKeyAccount;
 import org.qortal.account.PublicKeyAccount;
 import org.qortal.api.model.crosschain.TradeBotCreateRequest;
+import org.qortal.api.resource.CrossChainUtils;
 import org.qortal.asset.Asset;
 import org.qortal.crosschain.*;
 import org.qortal.crypto.Crypto;
@@ -30,11 +31,9 @@ import org.qortal.utils.NTP;
 
 import java.util.Arrays;
 import java.util.List;
-import java.util.Map;
 import java.util.stream.Collectors;
 
-import static java.util.Arrays.stream;
-import static java.util.stream.Collectors.toMap;
+import org.qortal.controller.tradebot.TradeStates.State;
 
 /**
  * Performing cross-chain trading steps on behalf of user.
@@ -50,45 +49,6 @@ public class DigibyteACCTv3TradeBot implements AcctTradeBot {
 
 	private static final Logger LOGGER = LogManager.getLogger(DigibyteACCTv3TradeBot.class);
 
-	public enum State implements TradeBot.StateNameAndValueSupplier {
-		BOB_WAITING_FOR_AT_CONFIRM(10, false, false),
-		BOB_WAITING_FOR_MESSAGE(15, true, true),
-		BOB_WAITING_FOR_AT_REDEEM(25, true, true),
-		BOB_DONE(30, false, false),
-		BOB_REFUNDED(35, false, false),
-
-		ALICE_WAITING_FOR_AT_LOCK(85, true, true),
-		ALICE_DONE(95, false, false),
-		ALICE_REFUNDING_A(105, true, true),
-		ALICE_REFUNDED(110, false, false);
-
-		private static final Map<Integer, State> map = stream(State.values()).collect(toMap(state -> state.value, state -> state));
-
-		public final int value;
-		public final boolean requiresAtData;
-		public final boolean requiresTradeData;
-
-		State(int value, boolean requiresAtData, boolean requiresTradeData) {
-			this.value = value;
-			this.requiresAtData = requiresAtData;
-			this.requiresTradeData = requiresTradeData;
-		}
-
-		public static State valueOf(int value) {
-			return map.get(value);
-		}
-
-		@Override
-		public String getState() {
-			return this.name();
-		}
-
-		@Override
-		public int getStateValue() {
-			return this.value;
-		}
-	}
-
 	/** Maximum time Bob waits for his AT creation transaction to be confirmed into a block. (milliseconds) */
 	private static final long MAX_AT_CONFIRMATION_PERIOD = 24 * 60 * 60 * 1000L; // ms
 
@@ -313,7 +273,7 @@ public class DigibyteACCTv3TradeBot implements AcctTradeBot {
 		}
 
 		// Attempt to send MESSAGE to Bob's Qortal trade address
-		byte[] messageData = DigibyteACCTv3.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
+		byte[] messageData = CrossChainUtils.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
 		String messageRecipient = crossChainTradeData.qortalCreatorTradeAddress;
 
 		boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
@@ -793,7 +753,7 @@ public class DigibyteACCTv3TradeBot implements AcctTradeBot {
 			case FUNDED: {
 				Coin redeemAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey redeemKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = digibyte.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = digibyte.getUnspentOutputs(p2shAddressA, false);
 
 				Transaction p2shRedeemTransaction = BitcoinyHTLC.buildRedeemTransaction(digibyte.getNetworkParameters(), redeemAmount, redeemKey,
 						fundingOutputs, redeemScriptA, secretA, receivingAccountInfo);
@@ -857,7 +817,7 @@ public class DigibyteACCTv3TradeBot implements AcctTradeBot {
 			case FUNDED:{
 				Coin refundAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey refundKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = digibyte.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = digibyte.getUnspentOutputs(p2shAddressA, false);
 
 				// Determine receive address for refund
 				String receiveAddress = digibyte.getUnusedReceiveAddress(tradeBotData.getForeignKey());

src/main/java/org/qortal/controller/tradebot/DogecoinACCTv1TradeBot.java

@@ -7,6 +7,7 @@ import org.bitcoinj.script.Script.ScriptType;
 import org.qortal.account.PrivateKeyAccount;
 import org.qortal.account.PublicKeyAccount;
 import org.qortal.api.model.crosschain.TradeBotCreateRequest;
+import org.qortal.api.resource.CrossChainUtils;
 import org.qortal.asset.Asset;
 import org.qortal.crosschain.*;
 import org.qortal.crypto.Crypto;
@@ -313,7 +314,7 @@ public class DogecoinACCTv1TradeBot implements AcctTradeBot {
 		}
 
 		// Attempt to send MESSAGE to Bob's Qortal trade address
-		byte[] messageData = DogecoinACCTv1.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
+		byte[] messageData = CrossChainUtils.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
 		String messageRecipient = crossChainTradeData.qortalCreatorTradeAddress;
 
 		boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
@@ -793,7 +794,7 @@ public class DogecoinACCTv1TradeBot implements AcctTradeBot {
 			case FUNDED: {
 				Coin redeemAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey redeemKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = dogecoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = dogecoin.getUnspentOutputs(p2shAddressA, false);
 
 				Transaction p2shRedeemTransaction = BitcoinyHTLC.buildRedeemTransaction(dogecoin.getNetworkParameters(), redeemAmount, redeemKey,
 						fundingOutputs, redeemScriptA, secretA, receivingAccountInfo);
@@ -857,7 +858,7 @@ public class DogecoinACCTv1TradeBot implements AcctTradeBot {
 			case FUNDED:{
 				Coin refundAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey refundKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = dogecoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = dogecoin.getUnspentOutputs(p2shAddressA, false);
 
 				// Determine receive address for refund
 				String receiveAddress = dogecoin.getUnusedReceiveAddress(tradeBotData.getForeignKey());

src/main/java/org/qortal/controller/tradebot/DogecoinACCTv3TradeBot.java

@@ -7,6 +7,7 @@ import org.bitcoinj.script.Script.ScriptType;
 import org.qortal.account.PrivateKeyAccount;
 import org.qortal.account.PublicKeyAccount;
 import org.qortal.api.model.crosschain.TradeBotCreateRequest;
+import org.qortal.api.resource.CrossChainUtils;
 import org.qortal.asset.Asset;
 import org.qortal.crosschain.*;
 import org.qortal.crypto.Crypto;
@@ -30,11 +31,9 @@ import org.qortal.utils.NTP;
 
 import java.util.Arrays;
 import java.util.List;
-import java.util.Map;
 import java.util.stream.Collectors;
 
-import static java.util.Arrays.stream;
-import static java.util.stream.Collectors.toMap;
+import org.qortal.controller.tradebot.TradeStates.State;
 
 /**
  * Performing cross-chain trading steps on behalf of user.
@@ -50,45 +49,6 @@ public class DogecoinACCTv3TradeBot implements AcctTradeBot {
 
 	private static final Logger LOGGER = LogManager.getLogger(DogecoinACCTv3TradeBot.class);
 
-	public enum State implements TradeBot.StateNameAndValueSupplier {
-		BOB_WAITING_FOR_AT_CONFIRM(10, false, false),
-		BOB_WAITING_FOR_MESSAGE(15, true, true),
-		BOB_WAITING_FOR_AT_REDEEM(25, true, true),
-		BOB_DONE(30, false, false),
-		BOB_REFUNDED(35, false, false),
-
-		ALICE_WAITING_FOR_AT_LOCK(85, true, true),
-		ALICE_DONE(95, false, false),
-		ALICE_REFUNDING_A(105, true, true),
-		ALICE_REFUNDED(110, false, false);
-
-		private static final Map<Integer, State> map = stream(State.values()).collect(toMap(state -> state.value, state -> state));
-
-		public final int value;
-		public final boolean requiresAtData;
-		public final boolean requiresTradeData;
-
-		State(int value, boolean requiresAtData, boolean requiresTradeData) {
-			this.value = value;
-			this.requiresAtData = requiresAtData;
-			this.requiresTradeData = requiresTradeData;
-		}
-
-		public static State valueOf(int value) {
-			return map.get(value);
-		}
-
-		@Override
-		public String getState() {
-			return this.name();
-		}
-
-		@Override
-		public int getStateValue() {
-			return this.value;
-		}
-	}
-
 	/** Maximum time Bob waits for his AT creation transaction to be confirmed into a block. (milliseconds) */
 	private static final long MAX_AT_CONFIRMATION_PERIOD = 24 * 60 * 60 * 1000L; // ms
 
@@ -313,7 +273,7 @@ public class DogecoinACCTv3TradeBot implements AcctTradeBot {
 		}
 
 		// Attempt to send MESSAGE to Bob's Qortal trade address
-		byte[] messageData = DogecoinACCTv3.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
+		byte[] messageData = CrossChainUtils.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
 		String messageRecipient = crossChainTradeData.qortalCreatorTradeAddress;
 
 		boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
@@ -793,7 +753,7 @@ public class DogecoinACCTv3TradeBot implements AcctTradeBot {
 			case FUNDED: {
 				Coin redeemAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey redeemKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = dogecoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = dogecoin.getUnspentOutputs(p2shAddressA, false);
 
 				Transaction p2shRedeemTransaction = BitcoinyHTLC.buildRedeemTransaction(dogecoin.getNetworkParameters(), redeemAmount, redeemKey,
 						fundingOutputs, redeemScriptA, secretA, receivingAccountInfo);
@@ -857,7 +817,7 @@ public class DogecoinACCTv3TradeBot implements AcctTradeBot {
 			case FUNDED:{
 				Coin refundAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey refundKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = dogecoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = dogecoin.getUnspentOutputs(p2shAddressA, false);
 
 				// Determine receive address for refund
 				String receiveAddress = dogecoin.getUnusedReceiveAddress(tradeBotData.getForeignKey());

src/main/java/org/qortal/controller/tradebot/LitecoinACCTv1TradeBot.java

@@ -7,6 +7,7 @@ import org.bitcoinj.script.Script.ScriptType;
 import org.qortal.account.PrivateKeyAccount;
 import org.qortal.account.PublicKeyAccount;
 import org.qortal.api.model.crosschain.TradeBotCreateRequest;
+import org.qortal.api.resource.CrossChainUtils;
 import org.qortal.asset.Asset;
 import org.qortal.crosschain.*;
 import org.qortal.crypto.Crypto;
@@ -312,7 +313,7 @@ public class LitecoinACCTv1TradeBot implements AcctTradeBot {
 		}
 
 		// Attempt to send MESSAGE to Bob's Qortal trade address
-		byte[] messageData = LitecoinACCTv1.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
+		byte[] messageData = CrossChainUtils.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
 		String messageRecipient = crossChainTradeData.qortalCreatorTradeAddress;
 
 		boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
@@ -756,7 +757,7 @@ public class LitecoinACCTv1TradeBot implements AcctTradeBot {
 			case FUNDED: {
 				Coin redeemAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey redeemKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = litecoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = litecoin.getUnspentOutputs(p2shAddressA, false);
 
 				Transaction p2shRedeemTransaction = BitcoinyHTLC.buildRedeemTransaction(litecoin.getNetworkParameters(), redeemAmount, redeemKey,
 						fundingOutputs, redeemScriptA, secretA, receivingAccountInfo);
@@ -820,7 +821,7 @@ public class LitecoinACCTv1TradeBot implements AcctTradeBot {
 			case FUNDED:{
 				Coin refundAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey refundKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = litecoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = litecoin.getUnspentOutputs(p2shAddressA, false);
 
 				// Determine receive address for refund
 				String receiveAddress = litecoin.getUnusedReceiveAddress(tradeBotData.getForeignKey());

src/main/java/org/qortal/controller/tradebot/LitecoinACCTv3TradeBot.java

@@ -7,6 +7,7 @@ import org.bitcoinj.script.Script.ScriptType;
 import org.qortal.account.PrivateKeyAccount;
 import org.qortal.account.PublicKeyAccount;
 import org.qortal.api.model.crosschain.TradeBotCreateRequest;
+import org.qortal.api.resource.CrossChainUtils;
 import org.qortal.asset.Asset;
 import org.qortal.crosschain.*;
 import org.qortal.crypto.Crypto;
@@ -30,12 +31,9 @@ import org.qortal.utils.NTP;
 
 import java.util.Arrays;
 import java.util.List;
-import java.util.Map;
 import java.util.stream.Collectors;
 
-import static java.util.Arrays.stream;
-import static java.util.stream.Collectors.toMap;
-
+import org.qortal.controller.tradebot.TradeStates.State;
 /**
  * Performing cross-chain trading steps on behalf of user.
  * <p>
@@ -50,45 +48,6 @@ public class LitecoinACCTv3TradeBot implements AcctTradeBot {
 
 	private static final Logger LOGGER = LogManager.getLogger(LitecoinACCTv3TradeBot.class);
 
-	public enum State implements TradeBot.StateNameAndValueSupplier {
-		BOB_WAITING_FOR_AT_CONFIRM(10, false, false),
-		BOB_WAITING_FOR_MESSAGE(15, true, true),
-		BOB_WAITING_FOR_AT_REDEEM(25, true, true),
-		BOB_DONE(30, false, false),
-		BOB_REFUNDED(35, false, false),
-
-		ALICE_WAITING_FOR_AT_LOCK(85, true, true),
-		ALICE_DONE(95, false, false),
-		ALICE_REFUNDING_A(105, true, true),
-		ALICE_REFUNDED(110, false, false);
-
-		private static final Map<Integer, State> map = stream(State.values()).collect(toMap(state -> state.value, state -> state));
-
-		public final int value;
-		public final boolean requiresAtData;
-		public final boolean requiresTradeData;
-
-		State(int value, boolean requiresAtData, boolean requiresTradeData) {
-			this.value = value;
-			this.requiresAtData = requiresAtData;
-			this.requiresTradeData = requiresTradeData;
-		}
-
-		public static State valueOf(int value) {
-			return map.get(value);
-		}
-
-		@Override
-		public String getState() {
-			return this.name();
-		}
-
-		@Override
-		public int getStateValue() {
-			return this.value;
-		}
-	}
-
 	/** Maximum time Bob waits for his AT creation transaction to be confirmed into a block. (milliseconds) */
 	private static final long MAX_AT_CONFIRMATION_PERIOD = 24 * 60 * 60 * 1000L; // ms
 
@@ -313,7 +272,7 @@ public class LitecoinACCTv3TradeBot implements AcctTradeBot {
 		}
 
 		// Attempt to send MESSAGE to Bob's Qortal trade address
-		byte[] messageData = LitecoinACCTv3.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
+		byte[] messageData = CrossChainUtils.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
 		String messageRecipient = crossChainTradeData.qortalCreatorTradeAddress;
 
 		boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
@@ -793,7 +752,7 @@ public class LitecoinACCTv3TradeBot implements AcctTradeBot {
 			case FUNDED: {
 				Coin redeemAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey redeemKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = litecoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = litecoin.getUnspentOutputs(p2shAddressA, false);
 
 				Transaction p2shRedeemTransaction = BitcoinyHTLC.buildRedeemTransaction(litecoin.getNetworkParameters(), redeemAmount, redeemKey,
 						fundingOutputs, redeemScriptA, secretA, receivingAccountInfo);
@@ -857,7 +816,7 @@ public class LitecoinACCTv3TradeBot implements AcctTradeBot {
 			case FUNDED:{
 				Coin refundAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey refundKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = litecoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = litecoin.getUnspentOutputs(p2shAddressA, false);
 
 				// Determine receive address for refund
 				String receiveAddress = litecoin.getUnusedReceiveAddress(tradeBotData.getForeignKey());

src/main/java/org/qortal/controller/tradebot/PirateChainACCTv3TradeBot.java

@@ -9,6 +9,7 @@ import org.bitcoinj.core.Coin;
 import org.qortal.account.PrivateKeyAccount;
 import org.qortal.account.PublicKeyAccount;
 import org.qortal.api.model.crosschain.TradeBotCreateRequest;
+import org.qortal.api.resource.CrossChainUtils;
 import org.qortal.asset.Asset;
 import org.qortal.crosschain.*;
 import org.qortal.crypto.Crypto;
@@ -32,11 +33,9 @@ import org.qortal.utils.NTP;
 
 import java.util.Arrays;
 import java.util.List;
-import java.util.Map;
 import java.util.stream.Collectors;
 
-import static java.util.Arrays.stream;
-import static java.util.stream.Collectors.toMap;
+import org.qortal.controller.tradebot.TradeStates.State;
 
 /**
  * Performing cross-chain trading steps on behalf of user.
@@ -52,45 +51,6 @@ public class PirateChainACCTv3TradeBot implements AcctTradeBot {
 
 	private static final Logger LOGGER = LogManager.getLogger(PirateChainACCTv3TradeBot.class);
 
-	public enum State implements TradeBot.StateNameAndValueSupplier {
-		BOB_WAITING_FOR_AT_CONFIRM(10, false, false),
-		BOB_WAITING_FOR_MESSAGE(15, true, true),
-		BOB_WAITING_FOR_AT_REDEEM(25, true, true),
-		BOB_DONE(30, false, false),
-		BOB_REFUNDED(35, false, false),
-
-		ALICE_WAITING_FOR_AT_LOCK(85, true, true),
-		ALICE_DONE(95, false, false),
-		ALICE_REFUNDING_A(105, true, true),
-		ALICE_REFUNDED(110, false, false);
-
-		private static final Map<Integer, State> map = stream(State.values()).collect(toMap(state -> state.value, state -> state));
-
-		public final int value;
-		public final boolean requiresAtData;
-		public final boolean requiresTradeData;
-
-		State(int value, boolean requiresAtData, boolean requiresTradeData) {
-			this.value = value;
-			this.requiresAtData = requiresAtData;
-			this.requiresTradeData = requiresTradeData;
-		}
-
-		public static State valueOf(int value) {
-			return map.get(value);
-		}
-
-		@Override
-		public String getState() {
-			return this.name();
-		}
-
-		@Override
-		public int getStateValue() {
-			return this.value;
-		}
-	}
-
 	/** Maximum time Bob waits for his AT creation transaction to be confirmed into a block. (milliseconds) */
 	private static final long MAX_AT_CONFIRMATION_PERIOD = 24 * 60 * 60 * 1000L; // ms
 
@@ -317,7 +277,7 @@ public class PirateChainACCTv3TradeBot implements AcctTradeBot {
 		}
 
 		// Attempt to send MESSAGE to Bob's Qortal trade address
-		byte[] messageData = PirateChainACCTv3.buildOfferMessage(tradeBotData.getTradeForeignPublicKey(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
+		byte[] messageData = CrossChainUtils.buildOfferMessage(tradeBotData.getTradeForeignPublicKey(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
 		String messageRecipient = crossChainTradeData.qortalCreatorTradeAddress;
 
 		boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);

src/main/java/org/qortal/controller/tradebot/RavencoinACCTv3TradeBot.java

@@ -7,6 +7,7 @@ import org.bitcoinj.script.Script.ScriptType;
 import org.qortal.account.PrivateKeyAccount;
 import org.qortal.account.PublicKeyAccount;
 import org.qortal.api.model.crosschain.TradeBotCreateRequest;
+import org.qortal.api.resource.CrossChainUtils;
 import org.qortal.asset.Asset;
 import org.qortal.crosschain.*;
 import org.qortal.crypto.Crypto;
@@ -30,11 +31,9 @@ import org.qortal.utils.NTP;
 
 import java.util.Arrays;
 import java.util.List;
-import java.util.Map;
 import java.util.stream.Collectors;
 
-import static java.util.Arrays.stream;
-import static java.util.stream.Collectors.toMap;
+import org.qortal.controller.tradebot.TradeStates.State;
 
 /**
  * Performing cross-chain trading steps on behalf of user.
@@ -50,45 +49,6 @@ public class RavencoinACCTv3TradeBot implements AcctTradeBot {
 
 	private static final Logger LOGGER = LogManager.getLogger(RavencoinACCTv3TradeBot.class);
 
-	public enum State implements TradeBot.StateNameAndValueSupplier {
-		BOB_WAITING_FOR_AT_CONFIRM(10, false, false),
-		BOB_WAITING_FOR_MESSAGE(15, true, true),
-		BOB_WAITING_FOR_AT_REDEEM(25, true, true),
-		BOB_DONE(30, false, false),
-		BOB_REFUNDED(35, false, false),
-
-		ALICE_WAITING_FOR_AT_LOCK(85, true, true),
-		ALICE_DONE(95, false, false),
-		ALICE_REFUNDING_A(105, true, true),
-		ALICE_REFUNDED(110, false, false);
-
-		private static final Map<Integer, State> map = stream(State.values()).collect(toMap(state -> state.value, state -> state));
-
-		public final int value;
-		public final boolean requiresAtData;
-		public final boolean requiresTradeData;
-
-		State(int value, boolean requiresAtData, boolean requiresTradeData) {
-			this.value = value;
-			this.requiresAtData = requiresAtData;
-			this.requiresTradeData = requiresTradeData;
-		}
-
-		public static State valueOf(int value) {
-			return map.get(value);
-		}
-
-		@Override
-		public String getState() {
-			return this.name();
-		}
-
-		@Override
-		public int getStateValue() {
-			return this.value;
-		}
-	}
-
 	/** Maximum time Bob waits for his AT creation transaction to be confirmed into a block. (milliseconds) */
 	private static final long MAX_AT_CONFIRMATION_PERIOD = 24 * 60 * 60 * 1000L; // ms
 
@@ -313,7 +273,7 @@ public class RavencoinACCTv3TradeBot implements AcctTradeBot {
 		}
 
 		// Attempt to send MESSAGE to Bob's Qortal trade address
-		byte[] messageData = RavencoinACCTv3.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
+		byte[] messageData = CrossChainUtils.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
 		String messageRecipient = crossChainTradeData.qortalCreatorTradeAddress;
 
 		boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
@@ -793,7 +753,7 @@ public class RavencoinACCTv3TradeBot implements AcctTradeBot {
 			case FUNDED: {
 				Coin redeemAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey redeemKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = ravencoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = ravencoin.getUnspentOutputs(p2shAddressA, false);
 
 				Transaction p2shRedeemTransaction = BitcoinyHTLC.buildRedeemTransaction(ravencoin.getNetworkParameters(), redeemAmount, redeemKey,
 						fundingOutputs, redeemScriptA, secretA, receivingAccountInfo);
@@ -857,7 +817,7 @@ public class RavencoinACCTv3TradeBot implements AcctTradeBot {
 			case FUNDED:{
 				Coin refundAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
 				ECKey refundKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
-				List<TransactionOutput> fundingOutputs = ravencoin.getUnspentOutputs(p2shAddressA);
+				List<TransactionOutput> fundingOutputs = ravencoin.getUnspentOutputs(p2shAddressA, false);
 
 				// Determine receive address for refund
 				String receiveAddress = ravencoin.getUnusedReceiveAddress(tradeBotData.getForeignKey());

src/main/java/org/qortal/controller/tradebot/TradeBot.java

@@ -215,6 +215,41 @@ public class TradeBot implements Listener {
 		return acctTradeBot.startResponse(repository, atData, acct, crossChainTradeData, foreignKey, receivingAddress);
 	}
 
+	/**
+	 * Creates a trade-bot entries from the 'Alice' viewpoint,
+	 * i.e. matching foreign blockchain currency to existing QORT offers.
+	 * <p>
+	 * Requires chosen trade offers from Bob, passed by <tt>crossChainTradeData</tt>
+	 * and access to a foreign blockchain wallet via <tt>foreignKey</tt>.
+	 * <p>
+	 * @param repository
+	 * @param crossChainTradeDataList chosen trade OFFERs that Alice wants to match
+	 * @param receiveAddress Alice's Qortal address to receive her QORT
+	 * @param foreignKey foreign blockchain wallet key
+	 * @param bitcoiny
+	 * @throws DataException
+	 */
+	public ResponseResult startResponseMultiple(
+			Repository repository,
+			ACCT acct,
+			List<CrossChainTradeData> crossChainTradeDataList,
+			String receiveAddress,
+			String foreignKey,
+			Bitcoiny bitcoiny) throws DataException {
+		AcctTradeBot acctTradeBot = findTradeBotForAcct(acct);
+		if (acctTradeBot == null) {
+			LOGGER.debug(() -> String.format("Couldn't find ACCT trade-bot for %s", acct.getBlockchain()));
+			return ResponseResult.NETWORK_ISSUE;
+		}
+
+		for( CrossChainTradeData tradeData : crossChainTradeDataList) {
+			// Check Alice doesn't already have an existing, on-going trade-bot entry for this AT.
+			if (repository.getCrossChainRepository().existsTradeWithAtExcludingStates(tradeData.qortalAtAddress, acctTradeBot.getEndStates()))
+				return ResponseResult.TRADE_ALREADY_EXISTS;
+		}
+		return TradeBotUtils.startResponseMultiple(repository, acct, crossChainTradeDataList, receiveAddress, foreignKey, bitcoiny);
+	}
+
 	public boolean deleteEntry(Repository repository, byte[] tradePrivateKey) throws DataException {
 		TradeBotData tradeBotData = repository.getCrossChainRepository().getTradeBotData(tradePrivateKey);
 		if (tradeBotData == null)

src/main/java/org/qortal/controller/tradebot/TradeBotUtils.java

@@ -0,0 +1,217 @@
+package org.qortal.controller.tradebot;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.bitcoinj.core.Transaction;
+import org.qortal.account.PrivateKeyAccount;
+import org.qortal.api.resource.CrossChainUtils;
+import org.qortal.crosschain.ACCT;
+import org.qortal.crosschain.Bitcoiny;
+import org.qortal.crosschain.BitcoinyHTLC;
+import org.qortal.crosschain.ForeignBlockchainException;
+import org.qortal.crypto.Crypto;
+import org.qortal.data.crosschain.CrossChainTradeData;
+import org.qortal.data.crosschain.TradeBotData;
+import org.qortal.data.transaction.MessageTransactionData;
+import org.qortal.group.Group;
+import org.qortal.repository.DataException;
+import org.qortal.repository.Repository;
+import org.qortal.repository.RepositoryManager;
+import org.qortal.transaction.MessageTransaction;
+import org.qortal.utils.Base58;
+import org.qortal.utils.NTP;
+import org.qortal.transaction.Transaction.ValidationResult;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.qortal.controller.tradebot.TradeStates.State;
+
+public class TradeBotUtils {
+
+    private static final Logger LOGGER = LogManager.getLogger(TradeBotUtils.class);
+    /**
+     * Creates trade-bot entries from the 'Alice' viewpoint, i.e. matching Bitcoiny coin to existing offers.
+     * <p>
+     * Requires chosen trade offers from Bob, passed by <tt>crossChainTradeData</tt>
+     * and access to a Blockchain wallet via <tt>foreignKey</tt>.
+     * <p>
+     * The <tt>crossChainTradeData</tt> contains the current trade offers state
+     * as extracted from the AT's data segment.
+     * <p>
+     * Access to a funded wallet is via a Blockchain BIP32 hierarchical deterministic key,
+     * passed via <tt>foreignKey</tt>.
+     * <b>This key will be stored in your node's database</b>
+     * to allow trade-bot to create/fund the necessary P2SH transactions!
+     * However, due to the nature of BIP32 keys, it is possible to give the trade-bot
+     * only a subset of wallet access (see BIP32 for more details).
+     * <p>
+     * As an example, the foreignKey can be extract from a <i>legacy, password-less</i>
+     * Electrum wallet by going to the console tab and entering:<br>
+     * <tt>wallet.keystore.xprv</tt><br>
+     * which should result in a base58 string starting with either 'xprv' (for Blockchain main-net)
+     * or 'tprv' for (Blockchain test-net).
+     * <p>
+     * It is envisaged that the value in <tt>foreignKey</tt> will actually come from a Qortal-UI-managed wallet.
+     * <p>
+     * If sufficient funds are available, <b>this method will actually fund the P2SH-A</b>
+     * with the Blockchain amount expected by 'Bob'.
+     * <p>
+     * If the Blockchain transaction is successfully broadcast to the network then
+     * we also send a MESSAGE to Bob's trade-bot to let them know; one message for each trade.
+     * <p>
+     * The trade-bot entries are saved to the repository and the cross-chain trading process commences.
+     * <p>
+     *
+     * @param repository for backing up the trade bot data
+     * @param crossChainTradeDataList chosen trade OFFERs that Alice wants to match
+     * @param receiveAddress Alice's Qortal address
+     * @param foreignKey              funded wallet xprv in base58
+     * @param bitcoiny the bitcoiny chain to match the sell offer with
+     * @return true if P2SH-A funding transaction successfully broadcast to Blockchain network, false otherwise
+     * @throws DataException
+     */
+    public static AcctTradeBot.ResponseResult startResponseMultiple(
+            Repository repository,
+            ACCT acct,
+            List<CrossChainTradeData> crossChainTradeDataList,
+            String receiveAddress,
+            String foreignKey,
+            Bitcoiny bitcoiny) throws DataException {
+
+        // Check we have enough funds via foreignKey to fund P2SH to cover expectedForeignAmount
+        long now = NTP.getTime();
+        long p2shFee;
+        try {
+            p2shFee = bitcoiny.getP2shFee(now);
+        } catch (ForeignBlockchainException e) {
+            LOGGER.debug("Couldn't estimate blockchain transaction fees?");
+            return AcctTradeBot.ResponseResult.NETWORK_ISSUE;
+        }
+
+        Map<String, Long> valueByP2shAddress = new HashMap<>(crossChainTradeDataList.size());
+
+        class DataCombiner{
+            CrossChainTradeData crossChainTradeData;
+            TradeBotData tradeBotData;
+            String p2shAddress;
+
+            public DataCombiner(CrossChainTradeData crossChainTradeData, TradeBotData tradeBotData, String p2shAddress) {
+                this.crossChainTradeData = crossChainTradeData;
+                this.tradeBotData = tradeBotData;
+                this.p2shAddress = p2shAddress;
+            }
+        }
+
+        List<DataCombiner> dataToProcess = new ArrayList<>();
+
+        for(CrossChainTradeData crossChainTradeData : crossChainTradeDataList) {
+            byte[] tradePrivateKey = TradeBot.generateTradePrivateKey();
+            byte[] secretA = TradeBot.generateSecret();
+            byte[] hashOfSecretA = Crypto.hash160(secretA);
+
+            byte[] tradeNativePublicKey = TradeBot.deriveTradeNativePublicKey(tradePrivateKey);
+            byte[] tradeNativePublicKeyHash = Crypto.hash160(tradeNativePublicKey);
+            String tradeNativeAddress = Crypto.toAddress(tradeNativePublicKey);
+
+            byte[] tradeForeignPublicKey = TradeBot.deriveTradeForeignPublicKey(tradePrivateKey);
+            byte[] tradeForeignPublicKeyHash = Crypto.hash160(tradeForeignPublicKey);
+            // We need to generate lockTime-A: add tradeTimeout to now
+            int lockTimeA = (crossChainTradeData.tradeTimeout * 60) + (int) (now / 1000L);
+            byte[] receivingPublicKeyHash = Base58.decode(receiveAddress); // Actually the whole address, not just PKH
+
+            TradeBotData tradeBotData = new TradeBotData(tradePrivateKey, acct.getClass().getSimpleName(),
+                    State.ALICE_WAITING_FOR_AT_LOCK.name(), State.ALICE_WAITING_FOR_AT_LOCK.value,
+                    receiveAddress,
+                    crossChainTradeData.qortalAtAddress,
+                    now,
+                    crossChainTradeData.qortAmount,
+                    tradeNativePublicKey, tradeNativePublicKeyHash, tradeNativeAddress,
+                    secretA, hashOfSecretA,
+                    crossChainTradeData.foreignBlockchain,
+                    tradeForeignPublicKey, tradeForeignPublicKeyHash,
+                    crossChainTradeData.expectedForeignAmount,
+                    foreignKey, null, lockTimeA, receivingPublicKeyHash);
+
+            // Attempt to backup the trade bot data
+            // Include tradeBotData as an additional parameter, since it's not in the repository yet
+            TradeBot.backupTradeBotData(repository, Arrays.asList(tradeBotData));
+
+            // Fee for redeem/refund is subtracted from P2SH-A balance.
+            // Do not include fee for funding transaction as this is covered by buildSpend()
+            long amountA = crossChainTradeData.expectedForeignAmount + p2shFee /*redeeming/refunding P2SH-A*/;
+
+            // P2SH-A to be funded
+            byte[] redeemScriptBytes = BitcoinyHTLC.buildScript(tradeForeignPublicKeyHash, lockTimeA, crossChainTradeData.creatorForeignPKH, hashOfSecretA);
+            String p2shAddress = bitcoiny.deriveP2shAddress(redeemScriptBytes);
+
+            valueByP2shAddress.put(p2shAddress, amountA);
+
+            dataToProcess.add(new DataCombiner(crossChainTradeData, tradeBotData, p2shAddress));
+        }
+
+        // Build transaction for funding P2SH-A
+        Transaction p2shFundingTransaction = bitcoiny.buildSpendMultiple(foreignKey, valueByP2shAddress, null);
+        if (p2shFundingTransaction == null) {
+            LOGGER.debug("Unable to build P2SH-A funding transaction - lack of funds?");
+            return AcctTradeBot.ResponseResult.BALANCE_ISSUE;
+        }
+
+        try {
+            bitcoiny.broadcastTransaction(p2shFundingTransaction);
+        } catch (ForeignBlockchainException e) {
+            // We couldn't fund P2SH-A at this time
+            LOGGER.debug("Couldn't broadcast P2SH-A funding transaction?");
+            return AcctTradeBot.ResponseResult.NETWORK_ISSUE;
+        }
+
+        for(DataCombiner datumToProcess : dataToProcess ) {
+            // Attempt to send MESSAGE to Bob's Qortal trade address
+            TradeBotData tradeBotData = datumToProcess.tradeBotData;
+
+            byte[] messageData = CrossChainUtils.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
+            CrossChainTradeData crossChainTradeData = datumToProcess.crossChainTradeData;
+            String messageRecipient = crossChainTradeData.qortalCreatorTradeAddress;
+
+            boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
+            if (!isMessageAlreadySent) {
+                // Do this in a new thread so caller doesn't have to wait for computeNonce()
+                // In the unlikely event that the transaction doesn't validate then the buy won't happen and eventually Alice's AT will be refunded
+                new Thread(() -> {
+                    try (final Repository threadsRepository = RepositoryManager.getRepository()) {
+                        PrivateKeyAccount sender = new PrivateKeyAccount(threadsRepository, tradeBotData.getTradePrivateKey());
+                        MessageTransaction messageTransaction = MessageTransaction.build(threadsRepository, sender, Group.NO_GROUP, messageRecipient, messageData, false, false);
+
+                        LOGGER.info("Computing nonce at difficulty {} for AT {} and recipient {}", messageTransaction.getPoWDifficulty(), tradeBotData.getAtAddress(), messageRecipient);
+                        messageTransaction.computeNonce();
+                        MessageTransactionData newMessageTransactionData = (MessageTransactionData) messageTransaction.getTransactionData();
+                        LOGGER.info("Computed nonce {} at difficulty {}", newMessageTransactionData.getNonce(), messageTransaction.getPoWDifficulty());
+                        messageTransaction.sign(sender);
+
+                        // reset repository state to prevent deadlock
+                        threadsRepository.discardChanges();
+
+                        if (messageTransaction.isSignatureValid()) {
+                            ValidationResult result = messageTransaction.importAsUnconfirmed();
+
+                            if (result != ValidationResult.OK) {
+                                LOGGER.warn(() -> String.format("Unable to send MESSAGE to Bob's trade-bot %s: %s", messageRecipient, result.name()));
+                            }
+                        } else {
+                            LOGGER.warn(() -> String.format("Unable to send MESSAGE to Bob's trade-bot %s: signature invalid", messageRecipient));
+                        }
+                    } catch (DataException e) {
+                        LOGGER.warn(() -> String.format("Unable to send MESSAGE to Bob's trade-bot %s: %s", messageRecipient, e.getMessage()));
+                    }
+                }, "TradeBot response").start();
+            }
+
+            TradeBot.updateTradeBotState(repository, tradeBotData, () -> String.format("Funding P2SH-A %s. Messaged Bob. Waiting for AT-lock", datumToProcess.p2shAddress));
+        }
+
+        return AcctTradeBot.ResponseResult.OK;
+    }
+}

src/main/java/org/qortal/controller/tradebot/TradeStates.java

@@ -0,0 +1,47 @@
+package org.qortal.controller.tradebot;
+
+import java.util.Map;
+
+import static java.util.Arrays.stream;
+import static java.util.stream.Collectors.toMap;
+
+public class TradeStates {
+    public enum State implements TradeBot.StateNameAndValueSupplier {
+        BOB_WAITING_FOR_AT_CONFIRM(10, false, false),
+        BOB_WAITING_FOR_MESSAGE(15, true, true),
+        BOB_WAITING_FOR_AT_REDEEM(25, true, true),
+        BOB_DONE(30, false, false),
+        BOB_REFUNDED(35, false, false),
+
+        ALICE_WAITING_FOR_AT_LOCK(85, true, true),
+        ALICE_DONE(95, false, false),
+        ALICE_REFUNDING_A(105, true, true),
+        ALICE_REFUNDED(110, false, false);
+
+        private static final Map<Integer, State> map = stream(State.values()).collect(toMap(state -> state.value, state -> state));
+
+        public final int value;
+        public final boolean requiresAtData;
+        public final boolean requiresTradeData;
+
+        State(int value, boolean requiresAtData, boolean requiresTradeData) {
+            this.value = value;
+            this.requiresAtData = requiresAtData;
+            this.requiresTradeData = requiresTradeData;
+        }
+
+        public static State valueOf(int value) {
+            return map.get(value);
+        }
+
+        @Override
+        public String getState() {
+            return this.name();
+        }
+
+        @Override
+        public int getStateValue() {
+            return this.value;
+        }
+    }
+}

src/main/java/org/qortal/crosschain/BitcoinACCTv1.java

@@ -802,12 +802,6 @@ public class BitcoinACCTv1 implements ACCT {
 		return tradeData;
 	}
 
-	/** Returns 'offer' MESSAGE payload for trade partner to send to AT creator's trade address. */
-	public static byte[] buildOfferMessage(byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA) {
-		byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
-		return Bytes.concat(partnerBitcoinPKH, hashOfSecretA, lockTimeABytes);
-	}
-
 	/** Returns info extracted from 'offer' MESSAGE payload sent by trade partner to AT creator's trade address, or null if not valid. */
 	public static OfferMessageData extractOfferMessageData(byte[] messageData) {
 		if (messageData == null || messageData.length != OFFER_MESSAGE_LENGTH)

src/main/java/org/qortal/crosschain/BitcoinACCTv3.java

@@ -751,12 +751,6 @@ public class BitcoinACCTv3 implements ACCT {
 		return tradeData;
 	}
 
-	/** Returns 'offer' MESSAGE payload for trade partner to send to AT creator's trade address. */
-	public static byte[] buildOfferMessage(byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA) {
-		byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
-		return Bytes.concat(partnerBitcoinPKH, hashOfSecretA, lockTimeABytes);
-	}
-
 	/** Returns info extracted from 'offer' MESSAGE payload sent by trade partner to AT creator's trade address, or null if not valid. */
 	public static OfferMessageData extractOfferMessageData(byte[] messageData) {
 		if (messageData == null || messageData.length != OFFER_MESSAGE_LENGTH)

src/main/java/org/qortal/crosschain/Bitcoiny.java

@@ -55,6 +55,13 @@ public abstract class Bitcoiny implements ForeignBlockchain {
 
 	protected Coin feePerKb;
 
+	/**
+	 * Blockchain Cache
+	 *
+	 * To store blockchain data and reduce redundant RPCs to the ElectrumX servers
+	 */
+	private final BlockchainCache blockchainCache = new BlockchainCache();
+
 	// Constructors and instance
 
 	protected Bitcoiny(BitcoinyBlockchainProvider blockchainProvider, Context bitcoinjContext, String currencyCode, Coin feePerKb) {
@@ -76,6 +83,7 @@ public abstract class Bitcoiny implements ForeignBlockchain {
 		return this.bitcoinjContext;
 	}
 
+	@Override
 	public String getCurrencyCode() {
 		return this.currencyCode;
 	}
@@ -208,8 +216,8 @@ public abstract class Bitcoiny implements ForeignBlockchain {
 	 * @throws ForeignBlockchainException if there was an error.
 	 */
 	// TODO: don't return bitcoinj-based objects like TransactionOutput, use BitcoinyTransaction.Output instead
-	public List<TransactionOutput> getUnspentOutputs(String base58Address) throws ForeignBlockchainException {
-		List<UnspentOutput> unspentOutputs = this.blockchainProvider.getUnspentOutputs(addressToScriptPubKey(base58Address), false);
+	public List<TransactionOutput> getUnspentOutputs(String base58Address, boolean includeUnconfirmed) throws ForeignBlockchainException {
+		List<UnspentOutput> unspentOutputs = this.blockchainProvider.getUnspentOutputs(addressToScriptPubKey(base58Address), includeUnconfirmed);
 
 		List<TransactionOutput> unspentTransactionOutputs = new ArrayList<>();
 		for (UnspentOutput unspentOutput : unspentOutputs) {
@@ -343,6 +351,45 @@ public abstract class Bitcoiny implements ForeignBlockchain {
 		}
 	}
 
+	/**
+	 * Returns bitcoinj transaction sending the recipient's amount to each recipient given.
+	 *
+	 *
+	 * @param xprv58 the private master key
+	 * @param amountByRecipient each amount to send indexed by the recipient to send to
+	 * @param feePerByte the satoshis per byte
+	 *
+	 * @return the completed transaction, ready to broadcast
+	 */
+	public Transaction buildSpendMultiple(String xprv58, Map<String, Long> amountByRecipient, Long feePerByte) {
+		Context.propagate(bitcoinjContext);
+
+		Wallet wallet = Wallet.fromSpendingKeyB58(this.params, xprv58, DeterministicHierarchy.BIP32_STANDARDISATION_TIME_SECS);
+		wallet.setUTXOProvider(new WalletAwareUTXOProvider(this, wallet));
+
+		Transaction transaction = new Transaction(this.params);
+
+		for(Map.Entry<String, Long> amountForRecipient : amountByRecipient.entrySet()) {
+			Address destination = Address.fromString(this.params, amountForRecipient.getKey());
+			transaction.addOutput(Coin.valueOf(amountForRecipient.getValue()), destination);
+		}
+
+		SendRequest sendRequest = SendRequest.forTx(transaction);
+
+		if (feePerByte != null)
+			sendRequest.feePerKb = Coin.valueOf(feePerByte * 1000L); // Note: 1000 not 1024
+		else
+			// Allow override of default for TestNet3, etc.
+			sendRequest.feePerKb = this.getFeePerKb();
+
+		try {
+			wallet.completeTx(sendRequest);
+			return sendRequest.tx;
+		} catch (InsufficientMoneyException e) {
+			return null;
+		}
+	}
+
 	/**
 	 * Get Spending Candidate Addresses
 	 *
@@ -391,7 +438,7 @@ public abstract class Bitcoiny implements ForeignBlockchain {
 		List<TransactionOutput> allUnspentOutputs = new ArrayList<>();
 		Set<String> walletAddresses = this.getWalletAddresses(key58);
 		for (String address : walletAddresses) {
-			allUnspentOutputs.addAll(this.getUnspentOutputs(address));
+			allUnspentOutputs.addAll(this.getUnspentOutputs(address, true));
 		}
 		for (TransactionOutput output : allUnspentOutputs) {
 			if (!output.isAvailableForSpending()) {
@@ -465,13 +512,27 @@ public abstract class Bitcoiny implements ForeignBlockchain {
 					byte[] script = ScriptBuilder.createOutputScript(address).getProgram();
 
 					// Ask for transaction history - if it's empty then key has never been used
-					List<TransactionHash> historicTransactionHashes = this.getAddressTransactions(script, false);
+					List<TransactionHash> historicTransactionHashes = this.getAddressTransactions(script, true);
 
 					if (!historicTransactionHashes.isEmpty()) {
 						areAllKeysUnused = false;
 
-						for (TransactionHash transactionHash : historicTransactionHashes)
-							walletTransactions.add(this.getTransaction(transactionHash.txHash));
+						for (TransactionHash transactionHash : historicTransactionHashes) {
+
+							Optional<BitcoinyTransaction> walletTransaction
+									= this.blockchainCache.getTransactionByHash( transactionHash.txHash );
+
+							// if the wallet transaction is already cached
+							if(walletTransaction.isPresent() ) {
+								walletTransactions.add( walletTransaction.get() );
+							}
+							// otherwise get the transaction from the blockchain server
+							else {
+								BitcoinyTransaction transaction = getTransaction(transactionHash.txHash);
+								walletTransactions.add( transaction );
+								this.blockchainCache.addTransactionByHash(transactionHash.txHash, transaction);
+							}
+						}
 					}
 				}
 
@@ -563,17 +624,25 @@ public abstract class Bitcoiny implements ForeignBlockchain {
 				for (; ki < keys.size(); ++ki) {
 					DeterministicKey dKey = keys.get(ki);
 
-					// Check for transactions
 					Address address = Address.fromKey(this.params, dKey, ScriptType.P2PKH);
 					keySet.add(address.toString());
-					byte[] script = ScriptBuilder.createOutputScript(address).getProgram();
 
-					// Ask for transaction history - if it's empty then key has never been used
-					List<TransactionHash> historicTransactionHashes = this.getAddressTransactions(script, false);
-
-					if (!historicTransactionHashes.isEmpty()) {
+					// if the key already has a verified transaction history
+					if( this.blockchainCache.keyHasHistory( dKey ) ){
 						areAllKeysUnused = false;
 					}
+					else {
+						// Check for transactions
+						byte[] script = ScriptBuilder.createOutputScript(address).getProgram();
+
+						// Ask for transaction history - if it's empty then key has never been used
+						List<TransactionHash> historicTransactionHashes = this.getAddressTransactions(script, true);
+
+						if (!historicTransactionHashes.isEmpty()) {
+							areAllKeysUnused = false;
+							this.blockchainCache.addKeyWithHistory(dKey);
+						}
+					}
 				}
 
 				if (areAllKeysUnused) {
@@ -628,19 +697,26 @@ public abstract class Bitcoiny implements ForeignBlockchain {
 			do {
 				boolean areAllKeysUnused = true;
 
-				for (; ki < keys.size(); ++ki) {
+				for (; areAllKeysUnused && ki < keys.size(); ++ki) {
 					DeterministicKey dKey = keys.get(ki);
 
-					// Check for transactions
-					Address address = Address.fromKey(this.params, dKey, ScriptType.P2PKH);
-					byte[] script = ScriptBuilder.createOutputScript(address).getProgram();
-
-					// Ask for transaction history - if it's empty then key has never been used
-					List<TransactionHash> historicTransactionHashes = this.getAddressTransactions(script, false);
-
-					if (!historicTransactionHashes.isEmpty()) {
+					// if the key already has a verified transaction history
+					if( this.blockchainCache.keyHasHistory(dKey)) {
 						areAllKeysUnused = false;
 					}
+					else {
+						// Check for transactions
+						Address address = Address.fromKey(this.params, dKey, ScriptType.P2PKH);
+						byte[] script = ScriptBuilder.createOutputScript(address).getProgram();
+
+						// Ask for transaction history - if it's empty then key has never been used
+						List<TransactionHash> historicTransactionHashes = this.getAddressTransactions(script, true);
+
+						if (!historicTransactionHashes.isEmpty()) {
+							areAllKeysUnused = false;
+							this.blockchainCache.addKeyWithHistory(dKey);
+						}
+					}
 				}
 
 				if (areAllKeysUnused) {
@@ -803,7 +879,7 @@ public abstract class Bitcoiny implements ForeignBlockchain {
 
 					List<UnspentOutput> unspentOutputs;
 					try {
-						unspentOutputs = this.bitcoiny.blockchainProvider.getUnspentOutputs(script, false);
+						unspentOutputs = this.bitcoiny.blockchainProvider.getUnspentOutputs(script, true);
 					} catch (ForeignBlockchainException e) {
 						throw new UTXOProviderException(String.format("Unable to fetch unspent outputs for %s", address));
 					}
@@ -893,7 +969,7 @@ public abstract class Bitcoiny implements ForeignBlockchain {
 	}
 
 	private Long summingUnspentOutputs(String walletAddress) throws ForeignBlockchainException {
-		return this.getUnspentOutputs(walletAddress).stream()
+		return this.getUnspentOutputs(walletAddress, true).stream()
 				.map(TransactionOutput::getValue)
 				.mapToLong(Coin::longValue)
 				.sum();

src/main/java/org/qortal/crosschain/BitcoinyTBD.java

@@ -0,0 +1,151 @@
+package org.qortal.crosschain;
+
+import org.bitcoinj.core.Coin;
+import org.bitcoinj.core.Context;
+import org.bitcoinj.core.NetworkParameters;
+import org.qortal.api.model.crosschain.BitcoinyTBDRequest;
+import org.qortal.crosschain.ChainableServer.ConnectionType;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.EnumMap;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+public class BitcoinyTBD extends Bitcoiny {
+
+	private static HashMap<String, BitcoinyTBDRequest> requestsById = new HashMap<>();
+
+	private long minimumOrderAmount;
+
+	private static Map<String, BitcoinyTBD> instanceByCode = new HashMap<>();
+
+	private final NetTBD netTBD;
+
+	/**
+	 * Default ElectrumX Ports
+	 *
+	 * These are the defualts for all Bitcoin forks.
+	 */
+	private static final Map<ConnectionType, Integer> DEFAULT_ELECTRUMX_PORTS = new EnumMap<>(ConnectionType.class);
+	static {
+		DEFAULT_ELECTRUMX_PORTS.put(ConnectionType.TCP, 50001);
+		DEFAULT_ELECTRUMX_PORTS.put(ConnectionType.SSL, 50002);
+	}
+
+	/**
+	 * Constructor
+	 *
+	 * @param netTBD network access to the blockchain provider
+	 * @param blockchain blockchain provider
+	 * @param bitcoinjContext
+	 * @param currencyCode the trading symbol, ie LTC
+	 * @param minimumOrderAmount web search, LTC minimumOrderAmount = 1000000, 0.01 LTC minimum order to avoid dust errors
+	 * @param feePerKb web search, LTC feePerKb = 10000, 0.0001 LTC per 1000 bytes
+	 */
+	private BitcoinyTBD(
+			NetTBD netTBD,
+			BitcoinyBlockchainProvider blockchain,
+			Context bitcoinjContext,
+			String currencyCode,
+			long minimumOrderAmount,
+			long feePerKb) {
+
+		super(blockchain, bitcoinjContext, currencyCode, Coin.valueOf( feePerKb));
+
+		this.netTBD = netTBD;
+		this.minimumOrderAmount = minimumOrderAmount;
+
+		LOGGER.info(() -> String.format("Starting BitcoinyTBD support using %s", this.netTBD.getName()));
+	}
+
+	/**
+	 * Get Instance
+	 *
+	 * @param currencyCode the trading symbol, ie LTC
+	 *
+	 * @return the instance
+	 */
+	public static synchronized Optional<BitcoinyTBD> getInstance(String currencyCode) {
+
+		return Optional.ofNullable(instanceByCode.get(currencyCode));
+	}
+
+	/**
+	 * Build Instance
+	 *
+	 * @param bitcoinyTBDRequest
+	 * @param networkParams
+	 * @return the instance
+	 */
+	public static synchronized  BitcoinyTBD buildInstance(
+			BitcoinyTBDRequest bitcoinyTBDRequest,
+			NetworkParameters networkParams
+			) {
+
+		NetTBD netTBD
+				= new NetTBD(
+				bitcoinyTBDRequest.getNetworkName(),
+				bitcoinyTBDRequest.getFeeCeiling(),
+				networkParams,
+				Collections.emptyList(),
+				bitcoinyTBDRequest.getExpectedGenesisHash()
+		);
+
+		BitcoinyBlockchainProvider electrumX = new ElectrumX(netTBD.getName(), netTBD.getGenesisHash(), netTBD.getServers(), DEFAULT_ELECTRUMX_PORTS);
+		Context bitcoinjContext = new Context(netTBD.getParams());
+
+		BitcoinyTBD instance
+				= new BitcoinyTBD(
+						netTBD,
+						electrumX,
+						bitcoinjContext,
+						bitcoinyTBDRequest.getCurrencyCode(),
+						bitcoinyTBDRequest.getMinimumOrderAmount(),
+						bitcoinyTBDRequest.getFeePerKb());
+		electrumX.setBlockchain(instance);
+
+		instanceByCode.put(bitcoinyTBDRequest.getCurrencyCode(), instance);
+		requestsById.put(bitcoinyTBDRequest.getId(), bitcoinyTBDRequest);
+
+		return instance;
+	}
+
+	public static List<BitcoinyTBDRequest> getRequests() {
+
+		Collection<BitcoinyTBDRequest> requests = requestsById.values();
+
+		List<BitcoinyTBDRequest> list = new ArrayList<>( requests.size() );
+
+		list.addAll( requests );
+
+		return list;
+	}
+
+	@Override
+	public long getMinimumOrderAmount() {
+
+		return minimumOrderAmount;
+	}
+
+	@Override
+	public long getP2shFee(Long timestamp) throws ForeignBlockchainException {
+
+		return this.netTBD.getFeeCeiling();
+	}
+
+	@Override
+	public long getFeeCeiling() {
+
+		return this.netTBD.getFeeCeiling();
+	}
+
+	@Override
+	public void setFeeCeiling(long fee) {
+
+		this.netTBD.setFeeCeiling( fee );
+	}
+}

src/main/java/org/qortal/crosschain/BitcoinyUTXOProvider.java

@@ -30,7 +30,7 @@ public class BitcoinyUTXOProvider implements UTXOProvider {
                 byte[] script = ScriptBuilder.createOutputScript(address).getProgram();
 
                 // collection UTXO's for all confirmed unspent outputs
-                for (UnspentOutput output : this.bitcoiny.blockchainProvider.getUnspentOutputs(script, false)) {
+                for (UnspentOutput output : this.bitcoiny.blockchainProvider.getUnspentOutputs(script, true)) {
                     utxos.add(toUTXO(output));
                 }
             }

src/main/java/org/qortal/crosschain/BlockchainCache.java

@@ -0,0 +1,89 @@
+package org.qortal.crosschain;
+
+import org.bitcoinj.crypto.DeterministicKey;
+import org.qortal.settings.Settings;
+
+import java.util.Optional;
+import java.util.Queue;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentLinkedDeque;
+
+/**
+ * Class BlockchainCache
+ *
+ * Cache blockchain information to reduce redundant RPCs to the ElectrumX servers.
+ */
+public class BlockchainCache {
+
+    /**
+     * Keys With History
+     *
+     * Deterministic Keys with any transaction history.
+     */
+    private Queue<DeterministicKey> keysWithHistory = new ConcurrentLinkedDeque<>();
+
+    /**
+     * Transactions By Hash
+     *
+     * Transaction Hash -> Transaction
+     */
+    private ConcurrentHashMap<String, BitcoinyTransaction> transactionByHash = new ConcurrentHashMap<>();
+
+    /**
+     * Cache Limit
+     *
+     * If this limit is reached, the cache will be cleared or reduced.
+     */
+    private static final int CACHE_LIMIT = Settings.getInstance().getBlockchainCacheLimit();
+
+    /**
+     * Add Key With History
+     *
+     * @param key a deterministic key with a verified history
+     */
+    public void addKeyWithHistory(DeterministicKey key) {
+
+        if( this.keysWithHistory.size() > CACHE_LIMIT ) {
+            this.keysWithHistory.remove();
+        }
+
+        this.keysWithHistory.add(key);
+    }
+
+    /**
+     * Key Has History?
+     *
+     * @param key the deterministic key
+     *
+     * @return true if the key has a history, otherwise false
+     */
+    public boolean keyHasHistory( DeterministicKey key ) {
+        return this.keysWithHistory.contains(key);
+    }
+
+    /**
+     * Add Transaction By Hash
+     *
+     * @param hash the transaction hash
+     * @param transaction the transaction
+     */
+    public void addTransactionByHash( String hash, BitcoinyTransaction transaction ) {
+
+        if( this.transactionByHash.size() > CACHE_LIMIT ) {
+            this.transactionByHash.clear();
+        }
+
+        this.transactionByHash.put(hash, transaction);
+    }
+
+    /**
+     * Get Transaction By Hash
+     *
+     * @param hash the transaction hash
+     *
+     * @return the transaction, empty if the hash is not in the cache
+     */
+    public Optional<BitcoinyTransaction> getTransactionByHash( String hash ) {
+        return Optional.ofNullable( this.transactionByHash.get(hash) );
+    }
+}

src/main/java/org/qortal/crosschain/DeterminedNetworkParams.java

@@ -0,0 +1,387 @@
+package org.qortal.crosschain;
+
+import org.apache.logging.log4j.LogManager;
+import org.bitcoinj.core.*;
+import org.bitcoinj.store.BlockStore;
+import org.bitcoinj.store.BlockStoreException;
+import org.bitcoinj.utils.MonetaryFormat;
+import org.bouncycastle.util.encoders.Hex;
+import org.libdohj.core.AltcoinNetworkParameters;
+import org.libdohj.core.AltcoinSerializer;
+import org.qortal.api.model.crosschain.BitcoinyTBDRequest;
+import org.qortal.repository.DataException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import java.math.BigInteger;
+
+import static org.bitcoinj.core.Coin.COIN;
+
+/**
+ * Common parameters Bitcoin fork networks.
+ */
+public class DeterminedNetworkParams extends NetworkParameters implements AltcoinNetworkParameters {
+
+    private static final org.apache.logging.log4j.Logger LOGGER = LogManager.getLogger(DeterminedNetworkParams.class);
+
+    public static final long MAX_TARGET_COMPACT_BITS = 0x1e0fffffL;
+    /**
+     *  Standard format for the LITE denomination.
+     */
+    private MonetaryFormat fullUnit;
+
+    /**
+     * Standard format for the mLITE denomination.
+     * */
+    private MonetaryFormat mUnit;
+
+    /**
+     * Base Unit
+     *
+     * The equivalent for Satoshi for Bitcoin
+     */
+    private MonetaryFormat baseUnit;
+
+     /**
+     * The maximum money to be generated
+     */
+    public final Coin maxMoney;
+
+    /**
+     * Currency code for full unit.
+     * */
+    private String code = "LITE";
+
+    /**
+     *  Currency code for milli Unit.
+     *  */
+    private String mCode = "mLITE";
+
+    /**
+     * Currency code for base unit.
+     * */
+    private String baseCode = "Liteoshi";
+
+
+    private int protocolVersionMinimum;
+    private int protocolVersionCurrent;
+
+    private static final Coin BASE_SUBSIDY = COIN.multiply(50);
+
+    protected Logger log = LoggerFactory.getLogger(DeterminedNetworkParams.class);
+
+    private int minNonDustOutput;
+
+    private String uriScheme;
+
+    private boolean hasMaxMoney;
+
+    public DeterminedNetworkParams( BitcoinyTBDRequest request ) throws DataException {
+        super();
+
+        if( request.getTargetTimespan() > 0 && request.getTargetSpacing() > 0 )
+            this.interval = request.getTargetTimespan() / request.getTargetSpacing();
+
+        this.targetTimespan = request.getTargetTimespan();
+
+        // this compact value is used for every Bitcoin fork for no documented reason
+        this.maxTarget = Utils.decodeCompactBits(MAX_TARGET_COMPACT_BITS);
+
+        this.packetMagic = request.getPacketMagic();
+
+        this.id = request.getId();
+        this.port = request.getPort();
+        this.addressHeader = request.getAddressHeader();
+        this.p2shHeader = request.getP2shHeader();
+        this.segwitAddressHrp = request.getSegwitAddressHrp();
+
+        this.dumpedPrivateKeyHeader = request.getDumpedPrivateKeyHeader();
+
+        LOGGER.info( "Creating Genesis Block ...");
+
+        //this.genesisBlock = CoinParamsUtil.createGenesisBlockFromRequest(this, request);
+
+        LOGGER.info("Created Genesis Block: genesisBlock = " + genesisBlock );
+
+        // this is 100 for each coin from what I can tell
+        this.spendableCoinbaseDepth = 100;
+
+        this.subsidyDecreaseBlockCount = request.getSubsidyDecreaseBlockCount();
+
+//        String genesisHash = genesisBlock.getHashAsString();
+//
+//        LOGGER.info("genesisHash = " + genesisHash);
+//
+//        LOGGER.info("request = " + request);
+//
+//        checkState(genesisHash.equals(request.getExpectedGenesisHash()));
+        this.alertSigningKey = Hex.decode(request.getPubKey());
+
+        this.majorityEnforceBlockUpgrade = request.getMajorityEnforceBlockUpgrade();
+        this.majorityRejectBlockOutdated = request.getMajorityRejectBlockOutdated();
+        this.majorityWindow = request.getMajorityWindow();
+
+        this.dnsSeeds = request.getDnsSeeds();
+
+        this.bip32HeaderP2PKHpub = request.getBip32HeaderP2PKHpub();
+        this.bip32HeaderP2PKHpriv = request.getBip32HeaderP2PKHpriv();
+
+        this.code = request.getCode();
+        this.mCode = request.getmCode();
+        this.baseCode = request.getBaseCode();
+
+        this.fullUnit = MonetaryFormat.BTC.noCode()
+                .code(0, this.code)
+                .code(3, this.mCode)
+                .code(7, this.baseCode);
+        this.mUnit = fullUnit.shift(3).minDecimals(2).optionalDecimals(2);
+        this.baseUnit = fullUnit.shift(7).minDecimals(0).optionalDecimals(2);
+
+        this.protocolVersionMinimum = request.getProtocolVersionMinimum();
+        this.protocolVersionCurrent = request.getProtocolVersionCurrent();
+
+        this.minNonDustOutput = request.getMinNonDustOutput();
+
+        this.uriScheme = request.getUriScheme();
+
+        this.hasMaxMoney = request.isHasMaxMoney();
+
+        this.maxMoney = COIN.multiply(request.getMaxMoney());
+    }
+
+    @Override
+    public Coin getBlockSubsidy(final int height) {
+        // return BASE_SUBSIDY.shiftRight(height / getSubsidyDecreaseBlockCount());
+        // return something concerning Digishield for Dogecoin
+        // return something different for Digibyte validation.cpp::GetBlockSubsidy
+        // we may not need to support this
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Get the hash to use for a block.
+     */
+    @Override
+    public Sha256Hash getBlockDifficultyHash(Block block) {
+
+        return ((AltcoinBlock) block).getScryptHash();
+    }
+
+    @Override
+    public boolean isTestNet() {
+        return false;
+    }
+
+    public MonetaryFormat getMonetaryFormat() {
+
+        return this.fullUnit;
+    }
+
+    @Override
+    public Coin getMaxMoney() {
+
+        return this.maxMoney;
+    }
+
+    @Override
+    public Coin getMinNonDustOutput() {
+
+        return Coin.valueOf(this.minNonDustOutput);
+    }
+
+    @Override
+    public String getUriScheme() {
+
+        return this.uriScheme;
+    }
+
+    @Override
+    public boolean hasMaxMoney() {
+
+        return this.hasMaxMoney;
+    }
+
+
+    @Override
+    public String getPaymentProtocolId() {
+        return this.id;
+    }
+
+    @Override
+    public void checkDifficultyTransitions(StoredBlock storedPrev, Block nextBlock, BlockStore blockStore)
+        throws VerificationException, BlockStoreException {
+        try {
+            final long newTargetCompact = calculateNewDifficultyTarget(storedPrev, nextBlock, blockStore);
+            final long receivedTargetCompact = nextBlock.getDifficultyTarget();
+
+            if (newTargetCompact != receivedTargetCompact)
+                throw new VerificationException("Network provided difficulty bits do not match what was calculated: " +
+                        newTargetCompact + " vs " + receivedTargetCompact);
+        } catch (CheckpointEncounteredException ex) {
+            // Just have to take it on trust then
+        }
+    }
+
+    /**
+     * Get the difficulty target expected for the next block. This includes all
+     * the weird cases for Litecoin such as testnet blocks which can be maximum
+     * difficulty if the block interval is high enough.
+     *
+     * @throws CheckpointEncounteredException if a checkpoint is encountered while
+     * calculating difficulty target, and therefore no conclusive answer can
+     * be provided.
+     */
+    public long calculateNewDifficultyTarget(StoredBlock storedPrev, Block nextBlock, BlockStore blockStore)
+        throws VerificationException, BlockStoreException, CheckpointEncounteredException {
+        final Block prev = storedPrev.getHeader();
+        final int previousHeight = storedPrev.getHeight();
+        final int retargetInterval = this.getInterval();
+
+        // Is this supposed to be a difficulty transition point?
+        if ((storedPrev.getHeight() + 1) % retargetInterval != 0) {
+            if (this.allowMinDifficultyBlocks()) {
+                // Special difficulty rule for testnet:
+                // If the new block's timestamp is more than 5 minutes
+                // then allow mining of a min-difficulty block.
+                if (nextBlock.getTimeSeconds() > prev.getTimeSeconds() + getTargetSpacing() * 2) {
+                    return Utils.encodeCompactBits(maxTarget);
+                } else {
+                    // Return the last non-special-min-difficulty-rules-block
+                    StoredBlock cursor = storedPrev;
+
+                    while (cursor.getHeight() % retargetInterval != 0
+                            && cursor.getHeader().getDifficultyTarget() == Utils.encodeCompactBits(this.getMaxTarget())) {
+                        StoredBlock prevCursor = cursor.getPrev(blockStore);
+                        if (prevCursor == null) {
+                            break;
+                        }
+                        cursor = prevCursor;
+                    }
+
+                    return cursor.getHeader().getDifficultyTarget();
+                }
+            }
+
+            // No ... so check the difficulty didn't actually change.
+            return prev.getDifficultyTarget();
+        }
+
+        // We need to find a block far back in the chain. It's OK that this is expensive because it only occurs every
+        // two weeks after the initial block chain download.
+        StoredBlock cursor = storedPrev;
+        int goBack = retargetInterval - 1;
+
+        // Litecoin: This fixes an issue where a 51% attack can change difficulty at will.
+        // Go back the full period unless it's the first retarget after genesis.
+        // Code based on original by Art Forz
+        if (cursor.getHeight()+1 != retargetInterval)
+            goBack = retargetInterval;
+
+        for (int i = 0; i < goBack; i++) {
+            if (cursor == null) {
+                // This should never happen. If it does, it means we are following an incorrect or busted chain.
+                throw new VerificationException(
+                        "Difficulty transition point but we did not find a way back to the genesis block.");
+            }
+            cursor = blockStore.get(cursor.getHeader().getPrevBlockHash());
+        }
+
+        //We used checkpoints...
+        if (cursor == null) {
+            log.debug("Difficulty transition: Hit checkpoint!");
+            throw new CheckpointEncounteredException();
+        }
+
+        Block blockIntervalAgo = cursor.getHeader();
+        return this.calculateNewDifficultyTargetInner(previousHeight, prev.getTimeSeconds(),
+            prev.getDifficultyTarget(), blockIntervalAgo.getTimeSeconds(),
+            nextBlock.getDifficultyTarget());
+    }
+
+    /**
+     * Calculate the difficulty target expected for the next block after a normal
+     * recalculation interval. Does not handle special cases such as testnet blocks
+     * being setting the target to maximum for blocks after a long interval.
+     *
+     * @param previousHeight height of the block immediately before the retarget.
+     * @param prev the block immediately before the retarget block.
+     * @param nextBlock the block the retarget happens at.
+     * @param blockIntervalAgo The last retarget block.
+     * @return New difficulty target as compact bytes.
+     */
+    protected long calculateNewDifficultyTargetInner(int previousHeight, final Block prev,
+            final Block nextBlock, final Block blockIntervalAgo) {
+        return this.calculateNewDifficultyTargetInner(previousHeight, prev.getTimeSeconds(),
+            prev.getDifficultyTarget(), blockIntervalAgo.getTimeSeconds(),
+            nextBlock.getDifficultyTarget());
+    }
+
+    /**
+     *
+     * @param previousHeight Height of the block immediately previous to the one we're calculating difficulty of.
+     * @param previousBlockTime Time of the block immediately previous to the one we're calculating difficulty of.
+     * @param lastDifficultyTarget Compact difficulty target of the last retarget block.
+     * @param lastRetargetTime Time of the last difficulty retarget.
+     * @param nextDifficultyTarget The expected difficulty target of the next
+     * block, used for determining precision of the result.
+     * @return New difficulty target as compact bytes.
+     */
+    protected long calculateNewDifficultyTargetInner(int previousHeight, long previousBlockTime,
+        final long lastDifficultyTarget, final long lastRetargetTime,
+        final long nextDifficultyTarget) {
+        final int retargetTimespan = this.getTargetTimespan();
+        int actualTime = (int) (previousBlockTime - lastRetargetTime);
+        final int minTimespan = retargetTimespan / 4;
+        final int maxTimespan = retargetTimespan * 4;
+
+        actualTime = Math.min(maxTimespan, Math.max(minTimespan, actualTime));
+
+        BigInteger newTarget = Utils.decodeCompactBits(lastDifficultyTarget);
+        newTarget = newTarget.multiply(BigInteger.valueOf(actualTime));
+        newTarget = newTarget.divide(BigInteger.valueOf(retargetTimespan));
+
+        if (newTarget.compareTo(this.getMaxTarget()) > 0) {
+            log.info("Difficulty hit proof of work limit: {}", newTarget.toString(16));
+            newTarget = this.getMaxTarget();
+        }
+
+        int accuracyBytes = (int) (nextDifficultyTarget >>> 24) - 3;
+
+        // The calculated difficulty is to a higher precision than received, so reduce here.
+        BigInteger mask = BigInteger.valueOf(0xFFFFFFL).shiftLeft(accuracyBytes * 8);
+        newTarget = newTarget.and(mask);
+        return Utils.encodeCompactBits(newTarget);
+    }
+
+    @Override
+    public AltcoinSerializer getSerializer(boolean parseRetain) {
+        return new AltcoinSerializer(this, parseRetain);
+    }
+
+    @Override
+    public int getProtocolVersionNum(final ProtocolVersion version) {
+        switch (version) {
+            case PONG:
+            case BLOOM_FILTER:
+                return version.getBitcoinProtocolVersion();
+            case CURRENT:
+                return protocolVersionCurrent;
+            case MINIMUM:
+            default:
+                return protocolVersionMinimum;
+        }
+    }
+
+    /**
+     * Whether this network has special rules to enable minimum difficulty blocks
+     * after a long interval between two blocks (i.e. testnet).
+     */
+    public boolean allowMinDifficultyBlocks() {
+        return this.isTestNet();
+    }
+
+    public int getTargetSpacing() {
+        return this.getTargetTimespan() / this.getInterval();
+    }
+
+    private static class CheckpointEncounteredException extends Exception {  }
+}

src/main/java/org/qortal/crosschain/DigibyteACCTv3.java

@@ -751,12 +751,6 @@ public class DigibyteACCTv3 implements ACCT {
 		return tradeData;
 	}
 
-	/** Returns 'offer' MESSAGE payload for trade partner to send to AT creator's trade address. */
-	public static byte[] buildOfferMessage(byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA) {
-		byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
-		return Bytes.concat(partnerBitcoinPKH, hashOfSecretA, lockTimeABytes);
-	}
-
 	/** Returns info extracted from 'offer' MESSAGE payload sent by trade partner to AT creator's trade address, or null if not valid. */
 	public static OfferMessageData extractOfferMessageData(byte[] messageData) {
 		if (messageData == null || messageData.length != OFFER_MESSAGE_LENGTH)

src/main/java/org/qortal/crosschain/DogecoinACCTv1.java

@@ -748,12 +748,6 @@ public class DogecoinACCTv1 implements ACCT {
 		return tradeData;
 	}
 
-	/** Returns 'offer' MESSAGE payload for trade partner to send to AT creator's trade address. */
-	public static byte[] buildOfferMessage(byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA) {
-		byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
-		return Bytes.concat(partnerBitcoinPKH, hashOfSecretA, lockTimeABytes);
-	}
-
 	/** Returns info extracted from 'offer' MESSAGE payload sent by trade partner to AT creator's trade address, or null if not valid. */
 	public static OfferMessageData extractOfferMessageData(byte[] messageData) {
 		if (messageData == null || messageData.length != OFFER_MESSAGE_LENGTH)

src/main/java/org/qortal/crosschain/DogecoinACCTv3.java

@@ -751,12 +751,6 @@ public class DogecoinACCTv3 implements ACCT {
 		return tradeData;
 	}
 
-	/** Returns 'offer' MESSAGE payload for trade partner to send to AT creator's trade address. */
-	public static byte[] buildOfferMessage(byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA) {
-		byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
-		return Bytes.concat(partnerBitcoinPKH, hashOfSecretA, lockTimeABytes);
-	}
-
 	/** Returns info extracted from 'offer' MESSAGE payload sent by trade partner to AT creator's trade address, or null if not valid. */
 	public static OfferMessageData extractOfferMessageData(byte[] messageData) {
 		if (messageData == null || messageData.length != OFFER_MESSAGE_LENGTH)

src/main/java/org/qortal/crosschain/ElectrumX.java

@@ -46,7 +46,7 @@ public class ElectrumX extends BitcoinyBlockchainProvider {
 
 	private static final int RESPONSE_TIME_READINGS = 5;
 	private static final long MAX_AVG_RESPONSE_TIME = 2000L; // ms
-	public static final String MINIMUM_VERSION_ERROR = "MINIMUM VERSION ERROR";
+	public static final String MISSING_FEATURES_ERROR = "MISSING FEATURES ERROR";
 	public static final String EXPECTED_GENESIS_ERROR = "EXPECTED GENESIS ERROR";
 
 	private ChainableServerConnectionRecorder recorder = new ChainableServerConnectionRecorder(100);
@@ -721,8 +721,19 @@ public class ElectrumX extends BitcoinyBlockchainProvider {
 			// Check connection is suitable by asking for server features, including genesis block hash
 			JSONObject featuresJson = (JSONObject) this.connectedRpc("server.features");
 
-			if (featuresJson == null || Double.parseDouble((String) featuresJson.get("protocol_min")) < MIN_PROTOCOL_VERSION)
-				return Optional.of( recorder.recordConnection(server, requestedBy, true,  false, MINIMUM_VERSION_ERROR) );
+			if (featuresJson == null )
+				return Optional.of( recorder.recordConnection(server, requestedBy, true,  false, MISSING_FEATURES_ERROR) );
+
+			try {
+				double protocol_min = CrossChainUtils.getVersionDecimal(featuresJson, "protocol_min");
+
+				if (protocol_min < MIN_PROTOCOL_VERSION)
+					return Optional.of( recorder.recordConnection(server, requestedBy, true,  false, "old version: protocol_min = " + protocol_min + " < MIN_PROTOCOL_VERSION = " + MIN_PROTOCOL_VERSION) );
+			} catch (NumberFormatException e) {
+				return Optional.of( recorder.recordConnection(server, requestedBy,true, false,featuresJson.get("protocol_min").toString() + " is not a valid version"));
+			} catch (NullPointerException e) {
+				return Optional.of( recorder.recordConnection(server, requestedBy,true, false,"server version not available: protocol_min"));
+			}
 
 			if (this.expectedGenesisHash != null && !((String) featuresJson.get("genesis_hash")).equals(this.expectedGenesisHash))
 				return Optional.of( recorder.recordConnection(server, requestedBy, true, false, EXPECTED_GENESIS_ERROR) );

src/main/java/org/qortal/crosschain/ForeignBlockchain.java

@@ -2,6 +2,8 @@ package org.qortal.crosschain;
 
 public interface ForeignBlockchain {
 
+	public String getCurrencyCode();
+
 	public boolean isValidAddress(String address);
 
 	public boolean isValidWalletKey(String walletKey);

src/main/java/org/qortal/crosschain/LitecoinACCTv1.java

@@ -741,12 +741,6 @@ public class LitecoinACCTv1 implements ACCT {
 		return tradeData;
 	}
 
-	/** Returns 'offer' MESSAGE payload for trade partner to send to AT creator's trade address. */
-	public static byte[] buildOfferMessage(byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA) {
-		byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
-		return Bytes.concat(partnerBitcoinPKH, hashOfSecretA, lockTimeABytes);
-	}
-
 	/** Returns info extracted from 'offer' MESSAGE payload sent by trade partner to AT creator's trade address, or null if not valid. */
 	public static OfferMessageData extractOfferMessageData(byte[] messageData) {
 		if (messageData == null || messageData.length != OFFER_MESSAGE_LENGTH)

src/main/java/org/qortal/crosschain/LitecoinACCTv3.java

@@ -744,12 +744,6 @@ public class LitecoinACCTv3 implements ACCT {
 		return tradeData;
 	}
 
-	/** Returns 'offer' MESSAGE payload for trade partner to send to AT creator's trade address. */
-	public static byte[] buildOfferMessage(byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA) {
-		byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
-		return Bytes.concat(partnerBitcoinPKH, hashOfSecretA, lockTimeABytes);
-	}
-
 	/** Returns info extracted from 'offer' MESSAGE payload sent by trade partner to AT creator's trade address, or null if not valid. */
 	public static OfferMessageData extractOfferMessageData(byte[] messageData) {
 		if (messageData == null || messageData.length != OFFER_MESSAGE_LENGTH)

src/main/java/org/qortal/crosschain/NetTBD.java

@@ -0,0 +1,52 @@
+package org.qortal.crosschain;
+
+import org.bitcoinj.core.NetworkParameters;
+
+import java.util.Collection;
+
+public class NetTBD {
+
+    private String name;
+    private long feeCeiling;
+    private NetworkParameters params;
+    private Collection<ElectrumX.Server> servers;
+    private String genesisHash;
+
+    public NetTBD(String name, long feeCeiling, NetworkParameters params, Collection<ElectrumX.Server> servers, String genesisHash) {
+        this.name = name;
+        this.feeCeiling = feeCeiling;
+        this.params = params;
+        this.servers = servers;
+        this.genesisHash = genesisHash;
+    }
+
+    public String getName() {
+
+        return this.name;
+    }
+
+    public long getFeeCeiling() {
+
+        return feeCeiling;
+    }
+
+    public void setFeeCeiling(long feeCeiling) {
+
+        this.feeCeiling = feeCeiling;
+    }
+
+    public NetworkParameters getParams() {
+
+        return this.params;
+    }
+
+    public Collection<ElectrumX.Server> getServers() {
+
+        return this.servers;
+    }
+
+    public String getGenesisHash() {
+
+        return this.genesisHash;
+    }
+}

src/main/java/org/qortal/crosschain/PirateChainACCTv3.java

@@ -768,12 +768,6 @@ public class PirateChainACCTv3 implements ACCT {
 		return tradeData;
 	}
 
-	/** Returns 'offer' MESSAGE payload for trade partner to send to AT creator's trade address. */
-	public static byte[] buildOfferMessage(byte[] partnerBitcoinPublicKey, byte[] hashOfSecretA, int lockTimeA) {
-		byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
-		return Bytes.concat(partnerBitcoinPublicKey, hashOfSecretA, lockTimeABytes);
-	}
-
 	/** Returns info extracted from 'offer' MESSAGE payload sent by trade partner to AT creator's trade address, or null if not valid. */
 	public static OfferMessageData extractOfferMessageData(byte[] messageData) {
 		if (messageData == null || messageData.length != OFFER_MESSAGE_LENGTH)

src/main/java/org/qortal/crosschain/RavencoinACCTv3.java

@@ -751,12 +751,6 @@ public class RavencoinACCTv3 implements ACCT {
 		return tradeData;
 	}
 
-	/** Returns 'offer' MESSAGE payload for trade partner to send to AT creator's trade address. */
-	public static byte[] buildOfferMessage(byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA) {
-		byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
-		return Bytes.concat(partnerBitcoinPKH, hashOfSecretA, lockTimeABytes);
-	}
-
 	/** Returns info extracted from 'offer' MESSAGE payload sent by trade partner to AT creator's trade address, or null if not valid. */
 	public static OfferMessageData extractOfferMessageData(byte[] messageData) {
 		if (messageData == null || messageData.length != OFFER_MESSAGE_LENGTH)

src/main/java/org/qortal/data/account/AddressAmountData.java

@@ -0,0 +1,54 @@
+package org.qortal.data.account;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
+import java.util.Objects;
+
+// All properties to be converted to JSON via JAXB
+@XmlAccessorType(XmlAccessType.FIELD)
+public class AddressAmountData {
+
+    private String address;
+
+    @XmlJavaTypeAdapter(value = org.qortal.api.AmountTypeAdapter.class)
+    private long amount;
+
+    public AddressAmountData() {
+    }
+
+    public AddressAmountData(String address, long amount) {
+
+        this.address = address;
+        this.amount = amount;
+    }
+
+    public String getAddress() {
+        return address;
+    }
+
+    public long getAmount() {
+        return amount;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        AddressAmountData that = (AddressAmountData) o;
+        return amount == that.amount && Objects.equals(address, that.address);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(address, amount);
+    }
+
+    @Override
+    public String toString() {
+        return "AddressAmountData{" +
+                "address='" + address + '\'' +
+                ", amount=" + amount +
+                '}';
+    }
+}

src/main/java/org/qortal/data/account/AddressLevelPairing.java

@@ -0,0 +1,44 @@
+package org.qortal.data.account;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import java.util.Arrays;
+
+// All properties to be converted to JSON via JAXB
+@XmlAccessorType(XmlAccessType.FIELD)
+public class AddressLevelPairing {
+
+	private String address;
+
+	private int level;
+
+	// Constructors
+
+	// For JAXB
+	protected AddressLevelPairing() {
+	}
+
+	public AddressLevelPairing(String address, int level) {
+		this.address = address;
+		this.level = level;
+	}
+
+	// Getters / setters
+
+
+	public String getAddress() {
+		return address;
+	}
+
+	public int getLevel() {
+		return level;
+	}
+
+	@Override
+	public String toString() {
+		return "AddressLevelPairing{" +
+				"address='" + address + '\'' +
+				", level=" + level +
+				'}';
+	}
+}

src/main/java/org/qortal/data/account/BlockHeightRange.java

@@ -0,0 +1,59 @@
+package org.qortal.data.account;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import java.util.Objects;
+
+// All properties to be converted to JSON via JAXB
+@XmlAccessorType(XmlAccessType.FIELD)
+public class BlockHeightRange {
+
+    private int begin;
+
+    private int end;
+
+    private boolean isRewardDistribution;
+
+    public BlockHeightRange() {
+    }
+
+    public BlockHeightRange(int begin, int end, boolean isRewardDistribution) {
+        this.begin = begin;
+        this.end = end;
+        this.isRewardDistribution = isRewardDistribution;
+    }
+
+    public int getBegin() {
+        return begin;
+    }
+
+    public int getEnd() {
+        return end;
+    }
+
+    public boolean isRewardDistribution() {
+        return isRewardDistribution;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        BlockHeightRange that = (BlockHeightRange) o;
+        return begin == that.begin && end == that.end;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(begin, end);
+    }
+
+    @Override
+    public String toString() {
+        return "BlockHeightRange{" +
+                "begin=" + begin +
+                ", end=" + end +
+                ", isRewardDistribution=" + isRewardDistribution +
+                '}';
+    }
+}

src/main/java/org/qortal/data/account/BlockHeightRangeAddressAmounts.java

@@ -0,0 +1,52 @@
+package org.qortal.data.account;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import java.util.List;
+import java.util.Objects;
+
+// All properties to be converted to JSON via JAXB
+@XmlAccessorType(XmlAccessType.FIELD)
+public class BlockHeightRangeAddressAmounts {
+
+    private BlockHeightRange range;
+
+    private List<AddressAmountData> amounts;
+
+    public BlockHeightRangeAddressAmounts() {
+    }
+
+    public BlockHeightRangeAddressAmounts(BlockHeightRange range, List<AddressAmountData> amounts) {
+        this.range = range;
+        this.amounts = amounts;
+    }
+
+    public BlockHeightRange getRange() {
+        return range;
+    }
+
+    public List<AddressAmountData> getAmounts() {
+        return amounts;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        BlockHeightRangeAddressAmounts that = (BlockHeightRangeAddressAmounts) o;
+        return Objects.equals(range, that.range) && Objects.equals(amounts, that.amounts);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(range, amounts);
+    }
+
+    @Override
+    public String toString() {
+        return "BlockHeightRangeAddressAmounts{" +
+                "range=" + range +
+                ", amounts=" + amounts +
+                '}';
+    }
+}

src/main/java/org/qortal/data/account/MintershipReport.java

@@ -0,0 +1,156 @@
+package org.qortal.data.account;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import java.util.Arrays;
+
+// All properties to be converted to JSON via JAXB
+@XmlAccessorType(XmlAccessType.FIELD)
+public class MintershipReport {
+
+	private String address;
+
+	private int level;
+
+	private int blocksMinted;
+
+	private int adjustments;
+
+	private int penalties;
+
+	private boolean transfer;
+
+	private String name;
+
+	private int sponseeCount;
+
+	private int balance;
+
+	private int arbitraryCount;
+
+	private int transferAssetCount;
+
+	private int transferPrivsCount;
+
+	private int sellCount;
+
+	private int sellAmount;
+
+	private int buyCount;
+
+	private int buyAmount;
+
+	// Constructors
+
+	// For JAXB
+	protected MintershipReport() {
+	}
+
+	public MintershipReport(String address, int level, int blocksMinted, int adjustments, int penalties, boolean transfer, String name, int sponseeCount, int balance, int arbitraryCount, int transferAssetCount, int transferPrivsCount, int sellCount, int sellAmount, int buyCount, int buyAmount) {
+		this.address = address;
+		this.level = level;
+		this.blocksMinted = blocksMinted;
+		this.adjustments = adjustments;
+		this.penalties = penalties;
+		this.transfer = transfer;
+		this.name = name;
+		this.sponseeCount = sponseeCount;
+		this.balance = balance;
+		this.arbitraryCount = arbitraryCount;
+		this.transferAssetCount = transferAssetCount;
+		this.transferPrivsCount = transferPrivsCount;
+		this.sellCount = sellCount;
+		this.sellAmount = sellAmount;
+		this.buyCount = buyCount;
+		this.buyAmount = buyAmount;
+	}
+
+	// Getters / setters
+
+
+	public String getAddress() {
+		return address;
+	}
+
+	public int getLevel() {
+		return level;
+	}
+
+	public int getBlocksMinted() {
+		return blocksMinted;
+	}
+
+	public int getAdjustments() {
+		return adjustments;
+	}
+
+	public int getPenalties() {
+		return penalties;
+	}
+
+	public boolean isTransfer() {
+		return transfer;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public int getSponseeCount() {
+		return sponseeCount;
+	}
+
+	public int getBalance() {
+		return balance;
+	}
+
+	public int getArbitraryCount() {
+		return arbitraryCount;
+	}
+
+	public int getTransferAssetCount() {
+		return transferAssetCount;
+	}
+
+	public int getTransferPrivsCount() {
+		return transferPrivsCount;
+	}
+
+	public int getSellCount() {
+		return sellCount;
+	}
+
+	public int getSellAmount() {
+		return sellAmount;
+	}
+
+	public int getBuyCount() {
+		return buyCount;
+	}
+
+	public int getBuyAmount() {
+		return buyAmount;
+	}
+
+	@Override
+	public String toString() {
+		return "MintershipReport{" +
+				"address='" + address + '\'' +
+				", level=" + level +
+				", blocksMinted=" + blocksMinted +
+				", adjustments=" + adjustments +
+				", penalties=" + penalties +
+				", transfer=" + transfer +
+				", name='" + name + '\'' +
+				", sponseeCount=" + sponseeCount +
+				", balance=" + balance +
+				", arbitraryCount=" + arbitraryCount +
+				", transferAssetCount=" + transferAssetCount +
+				", transferPrivsCount=" + transferPrivsCount +
+				", sellCount=" + sellCount +
+				", sellAmount=" + sellAmount +
+				", buyCount=" + buyCount +
+				", buyAmount=" + buyAmount +
+				'}';
+	}
+}

src/main/java/org/qortal/data/account/SponsorshipReport.java

@@ -0,0 +1,164 @@
+package org.qortal.data.account;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import java.util.Arrays;
+
+// All properties to be converted to JSON via JAXB
+@XmlAccessorType(XmlAccessType.FIELD)
+public class SponsorshipReport {
+
+	private String address;
+
+	private int level;
+
+	private int blocksMinted;
+
+	private int adjustments;
+
+	private int penalties;
+
+	private boolean transfer;
+
+	private String[] names;
+
+	private int sponseeCount;
+
+	private int nonRegisteredCount;
+
+	private int avgBalance;
+
+	private int arbitraryCount;
+
+	private int transferAssetCount;
+
+	private int transferPrivsCount;
+
+	private int sellCount;
+
+	private int sellAmount;
+
+	private int buyCount;
+
+	private int buyAmount;
+
+	// Constructors
+
+	// For JAXB
+	protected SponsorshipReport() {
+	}
+
+	public SponsorshipReport(String address, int level, int blocksMinted, int adjustments, int penalties, boolean transfer, String[] names, int sponseeCount, int nonRegisteredCount, int avgBalance, int arbitraryCount, int transferAssetCount, int transferPrivsCount, int sellCount, int sellAmount, int buyCount, int buyAmount) {
+		this.address = address;
+		this.level = level;
+		this.blocksMinted = blocksMinted;
+		this.adjustments = adjustments;
+		this.penalties = penalties;
+		this.transfer = transfer;
+		this.names = names;
+		this.sponseeCount = sponseeCount;
+		this.nonRegisteredCount = nonRegisteredCount;
+		this.avgBalance = avgBalance;
+		this.arbitraryCount = arbitraryCount;
+		this.transferAssetCount = transferAssetCount;
+		this.transferPrivsCount = transferPrivsCount;
+		this.sellCount = sellCount;
+		this.sellAmount = sellAmount;
+		this.buyCount = buyCount;
+		this.buyAmount = buyAmount;
+	}
+
+	// Getters / setters
+
+
+	public String getAddress() {
+		return address;
+	}
+
+	public int getLevel() {
+		return level;
+	}
+
+	public int getBlocksMinted() {
+		return blocksMinted;
+	}
+
+	public int getAdjustments() {
+		return adjustments;
+	}
+
+	public int getPenalties() {
+		return penalties;
+	}
+
+	public boolean isTransfer() {
+		return transfer;
+	}
+
+	public String[] getNames() {
+		return names;
+	}
+
+	public int getSponseeCount() {
+		return sponseeCount;
+	}
+
+	public int getNonRegisteredCount() {
+		return nonRegisteredCount;
+	}
+
+	public int getAvgBalance() {
+		return avgBalance;
+	}
+
+	public int getArbitraryCount() {
+		return arbitraryCount;
+	}
+
+	public int getTransferAssetCount() {
+		return transferAssetCount;
+	}
+
+	public int getTransferPrivsCount() {
+		return transferPrivsCount;
+	}
+
+	public int getSellCount() {
+		return sellCount;
+	}
+
+	public int getSellAmount() {
+		return sellAmount;
+	}
+
+	public int getBuyCount() {
+		return buyCount;
+	}
+
+	public int getBuyAmount() {
+		return buyAmount;
+	}
+
+	@Override
+	public String toString() {
+		return "MintershipReport{" +
+				"address='" + address + '\'' +
+				", level=" + level +
+				", blocksMinted=" + blocksMinted +
+				", adjustments=" + adjustments +
+				", penalties=" + penalties +
+				", transfer=" + transfer +
+				", names=" + Arrays.toString(names) +
+				", sponseeCount=" + sponseeCount +
+				", nonRegisteredCount=" + nonRegisteredCount +
+				", avgBalance=" + avgBalance +
+				", arbitraryCount=" + arbitraryCount +
+				", transferAssetCount=" + transferAssetCount +
+				", transferPrivsCount=" + transferPrivsCount +
+				", sellCount=" + sellCount +
+				", sellAmount=" + sellAmount +
+				", buyCount=" + buyCount +
+				", buyAmount=" + buyAmount +
+				'}';
+	}
+}

src/main/java/org/qortal/data/arbitrary/ArbitraryDataIndex.java

@@ -0,0 +1,34 @@
+package org.qortal.data.arbitrary;
+
+import org.qortal.arbitrary.misc.Service;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+
+@XmlAccessorType(XmlAccessType.FIELD)
+public class ArbitraryDataIndex {
+
+    public String t;
+    public String n;
+    public int c;
+    public String l;
+
+    public ArbitraryDataIndex() {}
+
+    public ArbitraryDataIndex(String t, String n, int c, String l) {
+        this.t = t;
+        this.n = n;
+        this.c = c;
+        this.l = l;
+    }
+
+    @Override
+    public String toString() {
+        return "ArbitraryDataIndex{" +
+                "t='" + t + '\'' +
+                ", n='" + n + '\'' +
+                ", c=" + c +
+                ", l='" + l + '\'' +
+                '}';
+    }
+}

src/main/java/org/qortal/data/arbitrary/ArbitraryDataIndexDetail.java

@@ -0,0 +1,41 @@
+package org.qortal.data.arbitrary;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+
+@XmlAccessorType(XmlAccessType.FIELD)
+public class ArbitraryDataIndexDetail {
+
+    public String issuer;
+    public int rank;
+    public String term;
+    public String name;
+    public int category;
+    public String link;
+    public String indexIdentifer;
+
+    public ArbitraryDataIndexDetail() {}
+
+    public ArbitraryDataIndexDetail(String issuer, int rank, ArbitraryDataIndex index, String indexIdentifer) {
+        this.issuer = issuer;
+        this.rank = rank;
+        this.term = index.t;
+        this.name = index.n;
+        this.category = index.c;
+        this.link = index.l;
+        this.indexIdentifer = indexIdentifer;
+    }
+
+    @Override
+    public String toString() {
+        return "ArbitraryDataIndexDetail{" +
+                "issuer='" + issuer + '\'' +
+                ", rank=" + rank +
+                ", term='" + term + '\'' +
+                ", name='" + name + '\'' +
+                ", category=" + category +
+                ", link='" + link + '\'' +
+                ", indexIdentifer='" + indexIdentifer + '\'' +
+                '}';
+    }
+}

src/main/java/org/qortal/data/arbitrary/ArbitraryDataIndexScoreKey.java

@@ -0,0 +1,38 @@
+package org.qortal.data.arbitrary;
+
+import org.qortal.arbitrary.misc.Service;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import java.util.Objects;
+
+@XmlAccessorType(XmlAccessType.FIELD)
+public class ArbitraryDataIndexScoreKey {
+
+    public String name;
+    public int category;
+    public String link;
+
+    public ArbitraryDataIndexScoreKey() {}
+
+    public ArbitraryDataIndexScoreKey(String name, int category, String link) {
+        this.name = name;
+        this.category = category;
+        this.link = link;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        ArbitraryDataIndexScoreKey that = (ArbitraryDataIndexScoreKey) o;
+        return category == that.category && Objects.equals(name, that.name) && Objects.equals(link, that.link);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, category, link);
+    }
+
+
+}

src/main/java/org/qortal/data/arbitrary/ArbitraryDataIndexScorecard.java

@@ -0,0 +1,38 @@
+package org.qortal.data.arbitrary;
+
+import org.qortal.arbitrary.misc.Service;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+
+@XmlAccessorType(XmlAccessType.FIELD)
+public class ArbitraryDataIndexScorecard {
+
+    public double score;
+    public String name;
+    public int category;
+    public String link;
+
+    public ArbitraryDataIndexScorecard() {}
+
+    public ArbitraryDataIndexScorecard(double score, String name, int category, String link) {
+        this.score = score;
+        this.name = name;
+        this.category = category;
+        this.link = link;
+    }
+
+    public double getScore() {
+        return score;
+    }
+
+    @Override
+    public String toString() {
+        return "ArbitraryDataIndexScorecard{" +
+                "score=" + score +
+                ", name='" + name + '\'' +
+                ", category=" + category +
+                ", link='" + link + '\'' +
+                '}';
+    }
+}

src/main/java/org/qortal/data/arbitrary/ArbitraryResourceCache.java

@@ -0,0 +1,26 @@
+package org.qortal.data.arbitrary;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class ArbitraryResourceCache {
+    private ConcurrentHashMap<Integer, List<ArbitraryResourceData>> dataByService = new ConcurrentHashMap<>();
+    private ConcurrentHashMap<String, Integer> levelByName = new ConcurrentHashMap<>();
+
+    private ArbitraryResourceCache() {}
+
+    private static ArbitraryResourceCache SINGLETON = new ArbitraryResourceCache();
+
+    public static ArbitraryResourceCache getInstance(){
+        return SINGLETON;
+    }
+
+    public ConcurrentHashMap<String, Integer> getLevelByName() {
+        return levelByName;
+    }
+
+    public ConcurrentHashMap<Integer, List<ArbitraryResourceData>> getDataByService() {
+        return this.dataByService;
+    }
+}